# One Button Phone vs PollDi

The clearest difference is update cadence: One Button Phone at every 3 weeks against PollDi's every 15 months. One Button Phone also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, 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.

One Button Phone ships an update every 3 weeks, PollDi every 15 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | One Button Phone | PollDi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Monetization | Free | — |
| Size | 44 MB | 25 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [venyard GmbH](https://appshunter.io/developer/1584558803) | [TWT Interactive GmbH](https://appshunter.io/developer/386149816) |

## What reviewers say

### One Button Phone

[App page](https://appshunter.io/ios/app/one-button-phone/id1584558801)

This application connects to a specialized device to program its functions, monitor vital signs like pulse and blood pressure, and track location. It allows for managing contacts, setting SOS numbers, and receiving alerts for low battery or incoming calls.

**Highlights:** Device programming, Pulse and blood pressure monitoring, Location tracking, SOS number setup, Contact management, Step counting, Remote health data activation

**Features:** macOS Compatibility

**In-app purchases:** none


### PollDi

[App page](https://appshunter.io/ios/app/polldi/id6449494613)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Button Phone free?

One Button Phone is free to download, with no in-app purchases.

### Is PollDi free?

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

### Do One Button Phone or PollDi have ads?

Neither One Button Phone nor PollDi shows ads.

### Which is updated more often, One Button Phone or PollDi?

One Button Phone ships an update every 3 weeks, and PollDi every 15 months. Most recently, One Button Phone was updated on October 6, 2026 and PollDi on October 2, 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.*