Edited by:
Jessica Santero - Staff Writer
Updated

Over 50,000 new apps are released every month, creating an onslaught of options for users looking to enhance their phone's capabilities. Good news: we're here to help.

Every month, we root through the app stores, searching for the best new apps for your phone. We're not just regurgitating the Android and iOS charts: we're recommending the tools we've added to our own phones—ones that we know, from our own experiences, have improved our day-to-day lives.

Since 2008, we've watched the evolution of smartphones and apps, and we've learned the differences between essential ones and their fly-by-night counterparts. This collection of the best new iPhone and Android apps for September will help you get more out of the phone in your pocket. 

Plus, we've already found the best mobile games to fill your spare time. Just check out our guide to the best mobile games for iPhone and Android.

How we picked the best apps for September

Our testers search for Android and iPhone apps that are easy to use and affordable. We evaluate the best apps of the month through hands-on use and rate them on a five-star scale based on the following criteria:

  • User experience
  • Price and value
  • Efficacy
  • Practicality
  • Privacy & security

Best Apps for
 iPhone and Android

Quick Ball app logo
5 out of 5

Quick Ball

A floating edge panel that's actually easier to use than Samsung's own.

  • Free on the Google Play Store. Android only.
  • Requires Accessibility and Modify System Settings permissions to function.

I've never understood why people loved Samsung's Edge Panel. The user experience on it has always felt clunky, and I could never swipe it open reliably once I had a case on my phone. Quick Ball fixes basically everything I disliked about it, and after a month of daily use on my Galaxy Z Fold5, I have no plans to go back.

“It is a WAY better version of the Samsung Edge Panel.”

Instead of a hidden strip you have to catch just right, Quick Ball lives on the edge of your screen as a small, semicircular shape that's much easier to grab, even through a case. Swipe it open and you get five programmable shortcuts to apps or system settings; tap the "X" when you're done instead of fumbling to swipe it closed again. I set mine up to open my most-used apps, and it's now the fastest way I have to jump around my phone.

Screenshot of Quick Ball's floating tab resting on the edge of the home screen.
Quick Ball's tab sits right on the edge of the screen—small, but far easier to grab than Samsung's own Edge Panel handle.
Image: Scott Houghton | WhistleOut

Setting it up is also noticeably faster than programming Samsung's built-in panel. Assigning apps and settings to each of the five slots takes just a couple of taps, with no digging through nested menus to get there.

Screenshot of Quick Ball's menu open, showing the five programmable shortcuts.
Swipe the tab open and you get five programmable shortcuts—tap the “X” to close instead of fumbling a swipe gesture.
Image: Scott Houghton | WhistleOut
Most popular flagship phones on the market

An app like Quick Ball looks best on a phone that can keep up with it. If your current device is starting to lag, or you're due for an upgrade, here's what's leading the pack right now:

Motorola

Moto G 5G (2026) 128GB

  • 6.7 inch display
  • Rear Cameras: 50MP, 2MP
212 Plans from $0/mo + $213.99 Upfront
Samsung

Galaxy A26 5G

  • 6.7 inch display
  • Rear Cameras: 50MP, 8MP, 2MP
88 Plans from $0/mo + $263.99 Upfront
Samsung

Galaxy A27 5G 128GB

  • 6.7 inch display
  • Rear Cameras: 50MP, 5MP, 2MP
52 Plans from $0/mo + $349.99 Upfront

Here's the catch: Quick Ball didn't work out of the box for me, and I had to dig through a couple of settings menus before it would run properly. You'll need to toggle it on under Settings > Accessibility > Installed apps > Quick Ball, then go to Settings > Apps > Quick Ball > Force stop and reopen the app. Once I did that, everything clicked into place.

The app does ask for Accessibility and Modify System Settings permissions, which is understandably a dealbreaker for some people. I found the permissions reasonable given what the app actually does with them, but if you're not comfortable granting apps that kind of access, this one isn't for you. According to the developer, no data is tracked, and I didn't run into anything in my testing that suggested otherwise.

If you're a Samsung user who's never liked the Edge Panel, or an Android user who's always wanted one, Quick Ball is worth the five minutes it takes to set up. It's free, it's fast, and it's already become one of the apps I use most on my phone.

What we think

"This app is awesome, and it does a great job making the Edge Panel experience so much better. I never understood the appeal of Samsung's version until Quick Ball showed me how it should have worked all along."

Scott Houghton, Staff Writer

Best of September 2026
Recommended by Scott Houghton


Outernet app logo
4 out of 5

Outernet: Go Outside & Explore

Turns everything you save online into an actual plan to go do it.

  • Free on the Apple App Store. iPhone only, with no Android version currently available.
  • Explorer's Club unlocks unlimited imports for $6.99/month or $33.99/year.

I save restaurants, festivals, and cool-looking cafes on social media constantly, and I almost never actually go to any of them. Outernet is built specifically to fix that. You share a location or event to the app from wherever you found it—a social post, a poster, a random ad—and Outernet researches it, writes a quick guide, and adds it to your map so you actually remember it exists.

“Outernet keeps track of things to do, and the whole point is to get you off the app and out into the real world.”

I used it over the past month to keep track of restaurants, cafes, museums, festivals, and historical sites, both near home and for an upcoming trip. The moment you share something to Outernet, it automatically pulls in the details and writes a short guide based on its own research, so you're not stuck trying to remember why you saved something in the first place.

Screenshot of Outernet's saved locations feed, showing places and events ready to explore.
Outernet automatically pulls in the details on everything you save, so your spots are actually easy to find again.
Image: Max McCaskill | WhistleOut

Here's the catch: you have to watch the onboarding tutorial for this app to click. The save feature depends on adding Outernet to your phone's share sheet, and if you skip that setup step, the whole app becomes a lot harder to use. Once it's configured, though, sharing something to Outernet takes the same couple of taps as sharing to any other app.

Screenshot of Outernet's map view showing saved locations pinned nearby.
The map view pulls all your saved spots into one place, whether they're around the corner or across the country.
Image: Max McCaskill | WhistleOut
Top affordable unlimited data plans

Location-based apps like Outernet lean on your data connection to map and research everything you save. Make sure your plan can keep up with a look at some of the best unlimited data options right now:

#1
Lyca Mobile
Lyca Mobile

Unlimited Plus Plan

  • Unlimited 4G LTE/5G data
  • 15GB mobile hotspot data
  • Deal: Get this plan for only $12.50/mo. or 74% off for the first 9 months of service. Auto-renewal enrollment required.
$12.50/mo
Pay $12.50/month for the first 9 months<br>Regular rate is $49/month
#2
Cricket
Cricket

3-Month Unlimited Plan

  • Unlimited 4G LTE/5G data
  • No mobile hotspot data
  • Deal: Get this plan for only $45 for the first 3 months or $15/mo.
$15.00/mo
$45 advance payment for 3 months (equals to $15/month)<br>regular rate for 3 months is $120 (equals to $40/month)
+ $9.99 Upfront
#3
Mint Mobile
Mint Mobile

Unlimited Data Plan

  • Unlimited 4G LTE/5G data
  • 20GB mobile hotspot data
  • Deal: Get this unlimited plan for just $15/mo. (applicable for 3, 6 or up to 12 months of service)
$15.00/mo
$45 for 3 months of service
See the best unlimited data plans around

The free version caps you at five imports a day, which is plenty for casual browsing but not enough if you're researching an entire vacation in one sitting. Outernet also requires an account and does collect the URLs and location data behind each entry you save, though the app doesn't link directly to your social accounts or browser, and its privacy policy states it doesn't currently sell personal information to third parties.

If you're the type who saves a dozen cool places online and never visits any of them, Outernet is genuinely one of the more useful apps I've tested this year. It's free, it's simple once it's set up correctly, and it does exactly what its name implies—it gets you off your phone and out into the world.

What we think

"I liked Outernet because it's one of the few apps that seems designed to get you away from your smartphone. That's why the name is the inverse of ‘internet’—the developers want you to go out into the world."

Max McCaskill, Senior Staff Writer

Best of September 2026
Recommended by Max McCaskill


Otter.ai app logo
4.5 out of 5

Otter.ai

Never miss another meeting or lecture detail again.

Otter.ai listens to your meetings and lectures, then hands you back a full transcript and an AI-generated summary without you lifting a finger. The Google Calendar integration is what won me over—turn it on, and Otter automatically joins and records any meeting already sitting on your calendar.

“Otter's transcript comes with an AI summary and a chat bar so you can search for a specific detail instead of scrolling through the whole thing yourself.”

Once a meeting wraps, you get a transcript alongside an AI summary, and you can use the built-in chat to ask Otter to pull specific details out of that transcript instead of scrolling through the whole thing yourself. It's a small feature that ends up saving a surprising amount of time when you're trying to track down one specific decision buried in an hour-long call.

Screenshot of Otter.ai's transcript view showing the AI summary and chat bar.
Otter's transcript comes with an AI summary and a chat bar so you can search for a specific detail instead of scrolling through the whole thing yourself.
Image: Jessica Santero | WhistleOut

You don't need a calendar invite to use it, either. Hit the record button during class (always with the speaker's permission, of course) to keep a transcript of the lecture. It's especially useful for group study sessions or group projects, where it's easy to miss a smaller detail someone mentions in passing.

Best MVNOs for students on a budget

If you're using Otter for classes or group projects, there's a good chance you're also watching your budget. Here are some of the best affordable MVNOs running on the same networks as the Big Three carriers:

#1
Visible
Visible

$19 Visible Plan

  • Unlimited 4G LTE/5G data
  • Unlimited mobile hotspot data
  • Deal: Get $6/mo. off this Visible monthly plan for the first 12 months of service using promo code SAVE6
$19.00/mo
Taxes & Fees included
#2
Mint Mobile
Mint Mobile

Unlimited Data Plan

  • Unlimited 4G LTE/5G data
  • 20GB mobile hotspot data
  • Deal: Get this unlimited plan for just $15/mo. (applicable for 3, 6 or up to 12 months of service)
$15.00/mo
$45 for 3 months of service
#3
US Mobile
US Mobile

Unlimited Starter Plan

  • Unlimited 4G LTE/5G data
  • 10GB mobile hotspot data
  • whistleOut Exclusive: Get this plan for only $45 for 3 months ($15/mo.) with new number activation OR $5 off per month for 6 mo. (up to 3 lines) OR 30 Days FREE Trial
$25.00/mo
See the best unlimited phone plans

Transcription is available in English, Spanish, and French, with German and Chinese still in beta testing. The free Basic plan caps you at 300 minutes a month, which is plenty for casual use, but heavier note-takers juggling back-to-back classes or meetings will burn through that allowance fast and may want to look at Pro.

For students and professionals alike, Otter.ai is one of the most genuinely useful apps I've tested this year. It turns hours of audio into something you can actually search, and the free tier is generous enough to prove that before you ever have to pay for it.

What we think

"The Google Calendar integration is what won me over—turn it on, and Otter automatically joins and records any meeting already on your calendar. Between that and the searchable chat bar, I've stopped taking my own notes entirely."

Jessica Santero, Staff Writer

Best of September 2026
Recommended by Jessica Santero


How WhistleOut reviews apps

Our mobile experts scour the app stores every month, looking for the best new apps for Android and iPhone. Before recommending an app, we use the app for at least one full week, testing its basic functionality and evaluating whether or not it delivers on its promises. From there, we weigh the app's pros and cons, and then determine whether or not it's a worthwhile download for the wider population of cell phone users.

  • Easy to use
    Great apps simplify your phone. We selected the tools that don't require a complicated instructional manual.
  • Affordability
    The internet is filled with expensive price tags, but we're not buying what they're selling. We lean into inexpensive, quality apps. Extra points if they're free!
  • Hands-on testing
    We played around with these before recommending them, ensuring they're worth your download.

From there, we weigh the app's pros and cons and then determine whether or not it's a worthwhile download for the wider population of cell phone users.

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Jessica Santero

Staff Writer

Jessica Santero
Jessica is a Staff Writer for WhistleOut and the site’s resident app expert. Her coverage frequently includes hands-on comparisons of popular app categories, such as translation, navigation, and dating apps, to evaluate how they perform in real-world mobile use.

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