# KeyStart vs TempMail

The clearest difference is rating: TempMail at 5.0 against KeyStart's 1.0. TempMail also leads on update cadence (monthly vs every 13 months) and ratings volume (4 vs 1). KeyStart's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TempMail sells 3 in-app purchases, starting at $3.99 per 7 days. KeyStart asks for nothing beyond the download.

TempMail holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

KeyStart ships an update every 13 months, TempMail monthly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | KeyStart | TempMail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/keystart/id6749829964/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/tempmail-temp-mail-address/id6770739698/reviews)** |
| Number of ratings | 1 | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 24 MB | 53 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bernhard Mitas](https://appshunter.io/developer/1802023240) | [CodeCross](https://appshunter.io/developer/1660793254) |

## What reviewers say

### KeyStart

[App page](https://appshunter.io/ios/app/keystart/id6749829964)

This utility app provides a reliable pitch tool for choirs, a cappella groups, and vocalists. Select your desired key, play the correct chord or note, and ensure your group starts singing in tune.

**Highlights:** Choir pitch tool, A cappella group support, Vocalist tuning, Key selection, Chord and note playback, Singing in tune

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

**In-app purchases:** none


### TempMail

[App page](https://appshunter.io/ios/app/tempmail-temp-mail-address/id6770739698)

Instantly generate a temporary, disposable email address without any signup. Protect your real inbox from spam and phishing by using a throwaway address for signups, OTP codes, and free trials. Emails are automatically deleted after a set period.

**Highlights:** Instant temporary email address, Disposable email for signups, Real-time inbox with push alerts, Copy address in one tap, Emails auto-delete after 7 days, Choose domain from available list

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Unlmiited | $3.99 | per 7 days |
| Premium Monthly | $6.99 | per month |
| Temp Email Yearly | $49.99 | per year |


## Frequently asked questions

### Is KeyStart free?

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

### Is TempMail free?

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

### Which has better reviews, KeyStart or TempMail?

TempMail is rated higher. KeyStart averages 1.0 out of 5 from 1 ratings, while TempMail averages 5.0 from 4 ratings.

### Do KeyStart or TempMail have ads?

Neither KeyStart nor TempMail shows ads.

### Which is updated more often, KeyStart or TempMail?

KeyStart ships an update every 13 months, and TempMail monthly. Most recently, KeyStart was updated on October 6, 2026 and TempMail on October 12, 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.*