# 天文ガイド vs アイヌ語ことばずかん

The clearest difference is in-app purchases: アイヌ語ことばずかん at none against 天文ガイド's 10. アイヌ語ことばずかん also leads on ads (none vs shown) and update cadence (monthly vs every 14 months). 天文ガイド's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. 天文ガイド sells 10 in-app purchases, starting at $6.99 per month. アイヌ語ことばずかん asks for nothing beyond the download.

天文ガイド ships an update every 14 months, アイヌ語ことばずかん monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 天文ガイド | アイヌ語ことばずかん |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Monthly** |
| Size | 41 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seibundo Shinkosha Publishing Co., Ltd.](https://appshunter.io/developer/513602721) | [KATSUNORI SAITO](https://appshunter.io/developer/6796590046) |

## What reviewers say

### 天文ガイド

[App page](https://appshunter.io/ios/app/id987344209)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 天文ガイド | $6.99 | per month |
| 天文ガイド | $39.99 | per 6 months |
| 天文ガイド | $79.99 | per year |
| 天文ガイド2016年11月号 | $5.99 | one-time |
| 天文ガイド2016年12月号 | $5.99 | one-time |
| 天文ガイド2019年2月号 | $5.99 | one-time |
| 天文ガイド2019年4月号 | $5.99 | one-time |
| 天文ガイド2019年10月号 | $5.99 | one-time |
| tenmonguide202611 | $6.99 | one-time |
| tenmonguide202610 | $6.99 | one-time |


### アイヌ語ことばずかん

[App page](https://appshunter.io/ios/app/id6807238075)

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

**In-app purchases:** none


## Frequently asked questions

### Is 天文ガイド free?

天文ガイド is free to download, with in-app purchases available.

### Is アイヌ語ことばずかん free?

アイヌ語ことばずかん is free to download, with no in-app purchases.

### Do 天文ガイド or アイヌ語ことばずかん have ads?

天文ガイド shows ads; アイヌ語ことばずかん does not.

### Which is updated more often, 天文ガイド or アイヌ語ことばずかん?

天文ガイド ships an update every 14 months, and アイヌ語ことばずかん monthly. Most recently, 天文ガイド was updated on November 6, 2026 and アイヌ語ことばずかん on October 31, 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.*