# Buffers vs REBufSel1

The clearest difference is device support: Buffers at 3 against REBufSel1's 1. Buffers also leads on iOS requirement (14.1 vs 26.0). On price, update cadence, ads and in-app purchases 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, REBufSel1 every 17 months. The most recent releases landed on June 11, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Buffers | REBufSel1 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 17 months |
| Monetization | Free | — |
| Size | 0 MB | 1 MB |
| Requires iOS | **14.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Akkyra Systems](https://appshunter.io/developer/300710095) | [Terumichi Tanaka](https://appshunter.io/developer/1647312692) |

## 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


### REBufSel1

[App page](https://appshunter.io/ios/app/rebufsel1/id6466390266)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Buffers free?

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

### Is REBufSel1 free?

REBufSel1 is free to download, with no in-app purchases.

### Do Buffers or REBufSel1 have ads?

Neither Buffers nor REBufSel1 shows ads.

### Which is updated more often, Buffers or REBufSel1?

Buffers ships an update every 13 months, and REBufSel1 every 17 months. Most recently, Buffers was updated on June 11, 2026 and REBufSel1 on September 18, 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.*