# AELOS STEM vs 计数器

The clearest difference is update cadence: 计数器 at every 8 days against AELOS STEM's every 3 months. AELOS STEM's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AELOS STEM ships an update every 3 months, 计数器 every 8 days. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | AELOS STEM | 计数器 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | — | Free |
| Size | 97 MB | 3 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Leju(Shenzhen) Robot Technology CO., Ltd](https://appshunter.io/developer/1133429668) | [Beijing Black & White Network Technology Co., Ltd.](https://appshunter.io/developer/1743535104) |

## What reviewers say

### AELOS STEM

[App page](https://appshunter.io/ios/app/aelos-stem/id1335859984)

**Features:** macOS Compatibility

**In-app purchases:** none


### 计数器

[App page](https://appshunter.io/ios/app/id6770833195)

This utility app offers a simple and fast way to track repetitive events like exercise sets, water intake, or inventory. It supports multiple counters, a large button interface for easy single-handed use, and provides calendar views for daily records. Data is saved locally and can be synced across devices via iCloud.

**Highlights:** Multiple counters, Large button interface, Calendar view for daily records, Completion status for counters, Automatic pause for step tracking, iCloud synchronization, No account registration required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AELOS STEM free?

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

### Is 计数器 free?

计数器 is free to download, with no in-app purchases.

### Do AELOS STEM or 计数器 have ads?

Neither AELOS STEM nor 计数器 shows ads.

### Which is updated more often, AELOS STEM or 计数器?

AELOS STEM ships an update every 3 months, and 计数器 every 8 days. Most recently, AELOS STEM was updated on October 26, 2026 and 计数器 on October 29, 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.*