# Buffers vs ATP Tool

The clearest difference is update cadence: ATP Tool at every 3 weeks against Buffers's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Buffers ships an update every 13 months, ATP Tool every 3 weeks. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Buffers | ATP Tool |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 0 MB | 41 MB |
| Requires iOS | **14.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Akkyra Systems](https://appshunter.io/developer/300710095) | [朋 胡](https://appshunter.io/developer/1789238773) |

## What reviewers say

### Buffers

[App page](https://appshunter.io/ios/app/buffers/id306089755)

This tool helps design buffer solutions for pH control in research. It offers a calculator for accurate recipes and a reference for common buffering agents, supporting various parameters like pH, concentration, and temperature.

**Highlights:** 42 common buffering agents, Accurate recipe generation, Broad pH, concentration, temperature ranges, Detailed buffer system information, Shareable recipes (email, text, copy, print), Sophisticated calculation algorithm

**Features:** macOS Compatibility

**In-app purchases:** none


### ATP Tool

[App page](https://appshunter.io/ios/app/atp-tool/id6740475639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Buffers free?

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

### Is ATP Tool free?

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

### Do Buffers or ATP Tool have ads?

Neither Buffers nor ATP Tool shows ads.

### Which is updated more often, Buffers or ATP Tool?

Buffers ships an update every 13 months, and ATP Tool every 3 weeks. Most recently, Buffers was updated on June 11, 2026 and ATP Tool on September 9, 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.*