# TapFold vs Source Browser for Research

The clearest difference is update cadence: Source Browser for Research at every 3 days against TapFold's every 9 days. TapFold's advantage is iOS requirement (15.1 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TapFold sells 2 in-app purchases, starting at $4.99 per month and Source Browser for Research sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

TapFold ships an update every 9 days, Source Browser for Research every 3 days. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | TapFold | Source Browser for Research |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Size | 76 MB | 6 MB |
| Requires iOS | **15.1** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Firdaosh Bano](https://appshunter.io/developer/6784698561) | [YUKIYA SHIMODA](https://appshunter.io/developer/6804373908) |

## What reviewers say

### TapFold

[App page](https://appshunter.io/ios/app/tapfold-save-and-read-later/id6784698559)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TapFold Pro Monthly | $4.99 | per month |
| TapFold Pro Annual | $29.99 | per year |


### Source Browser for Research

[App page](https://appshunter.io/ios/app/source-browser-for-research/id6806154744)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TEXT MAP | $1.99 | one-time |


## Frequently asked questions

### Is TapFold free?

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

### Is Source Browser for Research free?

Source Browser for Research is free to download, with in-app purchases available.

### Do TapFold or Source Browser for Research have ads?

Neither TapFold nor Source Browser for Research shows ads.

### Which is updated more often, TapFold or Source Browser for Research?

TapFold ships an update every 9 days, and Source Browser for Research every 3 days. Most recently, TapFold was updated on October 4, 2026 and Source Browser for Research on October 11, 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.*