# Name That Rule vs Sermable

The clearest difference is price: Sermable at Free against Name That Rule's $0.99. Sermable also leads on update cadence (weekly vs every 6 weeks). Name That Rule's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 26.2). On ads and device support there is nothing between them.

Sermable is free to download; Name That Rule costs $0.99 up front. Sermable sells 2 one-off in-app purchases. Name That Rule asks for nothing beyond the download.

Name That Rule ships an update every 6 weeks, Sermable weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Name That Rule | Sermable |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/name-that-rule/id1456292449/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Paid | — |
| Size | 68 MB | 7 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Edwards Insight, LLC](https://appshunter.io/developer/1453778295) | [Sermable AB](https://appshunter.io/developer/1880835426) |

## What reviewers say

### Name That Rule

[App page](https://appshunter.io/ios/app/name-that-rule/id1456292449)

This app helps students master spelling by teaching them how to correctly form word derivatives when adding suffixes. It guides users through processes like doubling, dropping, or changing letters from base words, and emphasizes the importance of accent detection for accurate spelling.

**Highlights:** Spelling derivatives instruction, Suffix addition rules, Doubling, dropping, and changing letters, Accent detection for spelling, Word formation guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### Sermable

[App page](https://appshunter.io/ios/app/sermable/id6759812596)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sermable premium 1M | $7.99 | one-time |
| Sermable premium 1Y | $29.99 | one-time |


## Frequently asked questions

### Is Name That Rule free?

Name That Rule costs $0.99, with no in-app purchases.

### Is Sermable free?

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

### Do Name That Rule or Sermable have ads?

Neither Name That Rule nor Sermable shows ads.

### Which is updated more often, Name That Rule or Sermable?

Name That Rule ships an update every 6 weeks, and Sermable weekly. Most recently, Name That Rule was updated on October 24, 2026 and Sermable on October 24, 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.*