Holyiot vs KeyStart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Holyiot
This utility app allows users to read and modify Bluetooth beacon broadcast information. It also provides real-time environmental data, including temperature, pressure, and humidity.
- Read Bluetooth beacon broadcasts
- Modify broadcast parameters
- Read environmental temperature
- Read environmental pressure
- Read environmental humidity
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A Bluetooth beacon app, which can read the broadcast information of the device and modify the broadcast parameters,And read the current environment temperature, pressure, humidity.
KeyStart
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.
- Choir pitch tool
- A cappella group support
- Vocalist tuning
- Key selection
- Chord and note playback
- Singing in tune
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Give your choir the perfect starting note every time. KeyStart is a simple, reliable pitch tool for choirs, a cappella groups, and vocalists — choose your key, play the chord or note, and start singing in tune.
Screenshots
Verdict
The clearest difference is update cadence: Holyiot at every 4 weeks against KeyStart's every 13 months. Holyiot also leads on iOS requirement (10.0 vs 16.6). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 1.0 for Holyiot against 1.0 for KeyStart. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Holyiot ships an update every 4 weeks, KeyStart every 13 months. The most recent releases landed on June 5, 2026 and September 19, 2026 respectively.
| Parameter | Holyiot | KeyStart |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 weeks — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 19 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Hong yi yun jia technology Co.,LTD | Bernhard Mitas |
Customer experience
Holyiot
KeyStart
In-app purchases
Holyiot
No in-app purchases
KeyStart
No in-app purchases
