# JSlate vs Japaven

The clearest difference is in-app purchases: JSlate at none against Japaven's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Japaven sells 1 in-app purchase, starting at $1.99 per month. JSlate asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | JSlate | Japaven |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Size | 5 MB | 25 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [KEISUKE TONE](https://appshunter.io/developer/1893035978) | [Gor Davtyan](https://appshunter.io/developer/6797195021) |

## What reviewers say

### JSlate

[App page](https://appshunter.io/ios/app/jslate-production-timer/id6762127732)

**Features:** macOS Compatibility

**In-app purchases:** none


### Japaven

[App page](https://appshunter.io/ios/app/japaven/id6797195019)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Japaven Pro | $1.99 | per month |


## Frequently asked questions

### Is JSlate free?

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

### Is Japaven free?

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

### Do JSlate or Japaven have ads?

Neither JSlate nor Japaven shows ads.

### Which is updated more often, JSlate or Japaven?

JSlate ships an update every 2 days, and Japaven every 2 days. Most recently, JSlate was updated on October 25, 2026 and Japaven on October 25, 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.*