# Sponge Time vs Birding Map

The clearest difference is in-app purchases: Birding Map at none against Sponge Time's 3. Birding Map also leads on iOS requirement (15.0 vs 18.6). Sponge Time's advantage is update cadence (every 6 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Sponge Time sells 3 in-app purchases, starting at $0.99 per month. Birding Map asks for nothing beyond the download.

Sponge Time ships an update every 6 days, Birding Map every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Sponge Time | Birding Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Size | 35 MB | 27 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hangzhou Lion Cat Culture Technology Co., Ltd.](https://appshunter.io/developer/1842787919) | [剑 金](https://appshunter.io/developer/1880362235) |

## What reviewers say

### Sponge Time

[App page](https://appshunter.io/ios/app/sponge-time-lyubishchev-time/id6756347091)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sponge Time | $0.99 | per month |
| Sponge Time | $4.99 | per year |
| Sponge Time | $9.99 | one-time |


### Birding Map

[App page](https://appshunter.io/ios/app/birding-map/id6759761530)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sponge Time free?

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

### Is Birding Map free?

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

### Do Sponge Time or Birding Map have ads?

Neither Sponge Time nor Birding Map shows ads.

### Which is updated more often, Sponge Time or Birding Map?

Sponge Time ships an update every 6 days, and Birding Map every 3 months. Most recently, Sponge Time was updated on October 25, 2026 and Birding Map 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.*