# Physics Answers vs Publett

The clearest difference is update cadence: Publett at every 6 days against Physics Answers's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Physics Answers sells 2 in-app purchases, starting at $9.99 per month and Publett sells 2 in-app purchases, starting at $6.49 per month. Whichever you choose, the download price is not the number that matters.

Physics Answers ships an update every 3 months, Publett every 6 days. The most recent releases landed on September 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Physics Answers | Publett |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 111 MB | 39 MB |
| Requires iOS | 11.4 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Biobrain Learning Pty Ltd](https://appshunter.io/developer/1371680532) | [Matthew ONeill](https://appshunter.io/developer/1590878504) |

## What reviewers say

### Physics Answers

[App page](https://appshunter.io/ios/app/physics-answers-ap-physics/id1510694550)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Content | $9.99 | per month |
| All Content | $49.99 | per year |


### Publett

[App page](https://appshunter.io/ios/app/publett/id1626626854)

Access summarized academic research in audio and text formats, all under 10 minutes. Enjoy curated content, expert picks, and a free weekly feature. Ideal for fitting essential reading into a busy schedule.

**Highlights:** Summarized journal articles, Audio and text formats, Human-voiced summaries, Links to full publications, Curated content by experts, Weekly free feature, Researcher-focused podcasts

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $6.49 | per month |
| Annual Subscription | $67.99 | per year |


## Frequently asked questions

### Is Physics Answers free?

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

### Is Publett free?

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

### Do Physics Answers or Publett have ads?

Neither Physics Answers nor Publett shows ads.

### Which is updated more often, Physics Answers or Publett?

Physics Answers ships an update every 3 months, and Publett every 6 days. Most recently, Physics Answers was updated on September 25, 2026 and Publett on October 8, 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.*