# HamsterBase vs ADHD Reader

The clearest difference is in-app purchases: HamsterBase at none against ADHD Reader's 3. HamsterBase also leads on iOS requirement (12.4 vs 15.0). ADHD Reader's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. ADHD Reader sells 3 in-app purchases, starting at $1.99 per month. HamsterBase asks for nothing beyond the download.

HamsterBase ships an update every 2 months, ADHD Reader weekly. The most recent releases landed on May 14, 2026 and December 11, 2025 respectively.

## The numbers

| Metric | HamsterBase | ADHD Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 119 MB | 26 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [纯洁 林](https://appshunter.io/developer/1665792418) | [Chaojifeng (Xiamen) Network Technology Co., Ltd.](https://appshunter.io/developer/1779974143) |

## What reviewers say

### HamsterBase

[App page](https://appshunter.io/ios/app/hamsterbase/id6467029527)

**In-app purchases:** none


### ADHD Reader

[App page](https://appshunter.io/ios/app/adhd-reader/id6739710331)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $19.99 | one-time |


## Frequently asked questions

### Is HamsterBase free?

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

### Is ADHD Reader free?

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

### Do HamsterBase or ADHD Reader have ads?

Neither HamsterBase nor ADHD Reader shows ads.

### Which is updated more often, HamsterBase or ADHD Reader?

HamsterBase ships an update every 2 months, and ADHD Reader weekly. Most recently, HamsterBase was updated on May 14, 2026 and ADHD Reader on December 11, 2025.

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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.*