# NOVELAN Smart vs Letter Explainer

The clearest difference is in-app purchases: NOVELAN Smart at none against Letter Explainer's 3. NOVELAN Smart also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). Letter Explainer's advantage is update cadence (every 5 days vs every 6 months). On price and ads there is nothing between them.

Both are free to download. Letter Explainer sells 3 in-app purchases, starting at $3.99 per month. NOVELAN Smart asks for nothing beyond the download.

NOVELAN Smart ships an update every 6 months, Letter Explainer every 5 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NOVELAN Smart | Letter Explainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Size | 42 MB | 22 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ait-deutschland GmbH](https://appshunter.io/developer/605766509) | [Armen Ter-Oganezov](https://appshunter.io/developer/1723150483) |

## What reviewers say

### NOVELAN Smart

[App page](https://appshunter.io/ios/app/novelan-smart/id1061039177)

**Features:** macOS Compatibility

**In-app purchases:** none


### Letter Explainer

[App page](https://appshunter.io/ios/app/letter-explainer-postklar/id6816644992)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postklar Pro Monthly | $3.99 | per month |
| Postklar Pro Yearly | $24.99 | per year |
| 5 Scans | $2.99 | one-time |


## Frequently asked questions

### Is NOVELAN Smart free?

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

### Is Letter Explainer free?

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

### Do NOVELAN Smart or Letter Explainer have ads?

Neither NOVELAN Smart nor Letter Explainer shows ads.

### Which is updated more often, NOVELAN Smart or Letter Explainer?

NOVELAN Smart ships an update every 6 months, and Letter Explainer every 5 days. Most recently, NOVELAN Smart was updated on October 29, 2026 and Letter Explainer 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.*