# AALocker vs STEM FLEX

The clearest difference is in-app purchases: STEM FLEX at none against AALocker's 7. STEM FLEX also leads on update cadence (every 5 days vs fortnightly) and iOS requirement (14.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. AALocker sells 7 in-app purchases, starting at $1.99 per 7 days. STEM FLEX asks for nothing beyond the download.

AALocker ships an update fortnightly, STEM FLEX every 5 days. The most recent releases landed on September 21, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | AALocker | STEM FLEX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (259 ratings)](https://appshunter.io/ios/app/aalocker-app-locker/id1664034558/reviews)** | — |
| Number of ratings | **259** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 30 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nanjing Oumi Software Development Co., Ltd.](https://appshunter.io/developer/1653042026) | [FableVision, INC](https://appshunter.io/developer/330019981) |

## What reviewers say

### AALocker

[App page](https://appshunter.io/ios/app/aalocker-app-locker/id1664034558)

This app helps parents manage their children's device usage by blocking specific apps and setting time limits. It allows for scheduled access and can lock apps based on location to encourage responsible digital habits.

**Highlights:** Block specific apps, Set daily schedules, App usage limits, Location-based app blocking, Focus mode

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to VIP | $1.99 | per 7 days |
| Upgrade to VIP | $1.99 | per 7 days |
| Upgrade to VIP | $5.99 | per month |
| Upgrade to VIP | $5.99 | per month |
| Upgrade to VIP | $9.99 | per year |
| Upgrade to VIP | $9.99 | per year |
| Upgrade to lifetime VIP | $14.99 | one-time |

**What reviewers like**

- 👍 Hides apps effectively
- 👍 Can change app icons
- 👍 Good for privacy
- 👍 Works fine for some users
- 👍 Amazing app overall

**What reviewers complain about**

- 🐛 Glitching and not working
- 🐛 Stuck on password/authorization screen
- 🐛 Can't uninstall completely
- 🐛 App requests subscription repeatedly
- 🐛 Poor design for offers

**Reported bugs**

- Stuck on authorization/password screen
- Blank screen when searching in groups
- App icon still on desktop after enabling
- App cannot be uninstalled completely
- App glitches and doesn't work

**Requested features**

- Ability to change app names
- Add search functionality when adding apps
- Add Siri shortcuts toggle
- Ability to hide the app itself
- Support for older iOS versions (iOS 15)


### STEM FLEX

[App page](https://appshunter.io/ios/app/stem-flex/id6744830195)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AALocker free?

AALocker is free to download, with in-app purchases available.

### Is STEM FLEX free?

STEM FLEX is free to download, with no in-app purchases.

### Do AALocker or STEM FLEX have ads?

Neither AALocker nor STEM FLEX shows ads.

### Which is updated more often, AALocker or STEM FLEX?

AALocker ships an update fortnightly, and STEM FLEX every 5 days. Most recently, AALocker was updated on September 21, 2026 and STEM FLEX on May 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*