# AmphiApp | Citizen Science vs LEMO

The clearest difference is in-app purchases: AmphiApp | Citizen Science at none against LEMO's 2. AmphiApp | Citizen Science also leads on iOS requirement (12.0 vs 15.1). LEMO's advantage is update cadence (every 8 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. LEMO sells 2 in-app purchases, starting at $6.99 per month. AmphiApp | Citizen Science asks for nothing beyond the download.

AmphiApp | Citizen Science ships an update every 3 months, LEMO every 8 days. The most recent releases landed on September 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | AmphiApp | Citizen Science | LEMO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Size | 56 MB | 68 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SPOTTERON Gmbh](https://appshunter.io/developer/1378099707) | [Aleksandar Nedeljkovic](https://appshunter.io/developer/1865275266) |

## What reviewers say

### AmphiApp | Citizen Science

[App page](https://appshunter.io/ios/app/amphiapp-citizen-science/id6468587877)

**Features:** macOS Compatibility

**In-app purchases:** none


### LEMO

[App page](https://appshunter.io/ios/app/lemo/id6757204790)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LEMO PRO | $6.99 | per month |
| LEMO ULTRA | $12.99 | per month |


## Frequently asked questions

### Is AmphiApp | Citizen Science free?

AmphiApp | Citizen Science is free to download, with no in-app purchases.

### Is LEMO free?

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

### Do AmphiApp | Citizen Science or LEMO have ads?

Neither AmphiApp | Citizen Science nor LEMO shows ads.

### Which is updated more often, AmphiApp | Citizen Science or LEMO?

AmphiApp | Citizen Science ships an update every 3 months, and LEMO every 8 days. Most recently, AmphiApp | Citizen Science was updated on September 28, 2026 and LEMO on October 12, 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.*