# DecayMate vs ABCD

The clearest difference is in-app purchases: DecayMate at none against ABCD's 1. ABCD's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. ABCD sells 1 one-off in-app purchase. DecayMate asks for nothing beyond the download.

DecayMate ships an update every 5 weeks, ABCD every 3 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DecayMate | ABCD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 1 MB | 51 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ludovico Pestarino](https://appshunter.io/developer/1856700574) | [Haileslassie Lilay Desalegn](https://appshunter.io/developer/1841785547) |

## What reviewers say

### DecayMate

[App page](https://appshunter.io/ios/app/decaymate/id6755844272)

**Features:** macOS Compatibility

**In-app purchases:** none


### ABCD

[App page](https://appshunter.io/ios/app/abcd-linguakids/id6756628925)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LinguaKids Premium Version. | $3.99 | one-time |


## Frequently asked questions

### Is DecayMate free?

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

### Is ABCD free?

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

### Do DecayMate or ABCD have ads?

Neither DecayMate nor ABCD shows ads.

### Which is updated more often, DecayMate or ABCD?

DecayMate ships an update every 5 weeks, and ABCD every 3 weeks. Most recently, DecayMate was updated on October 9, 2026 and ABCD on October 6, 2026.

---

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