Odin Attendance vs MTech Sonar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Odin Attendance
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Do you have someone going to a trip and left them there. With this app, you are no longer forgetting anyone. Check in before the trip and check out before leaving the trip. No one with be left or forgotten. You can charge them a ticket price when they check in.
MTech Sonar
This app automates barn data collection for real-time monitoring of environmental conditions and bird health. It also tracks daily animal performance against established standards.
- Automated barn data collection
- Real-time environment monitoring
- Minute-by-minute bird health tracking
- Daily animal performance trending
- Performance comparison to standards
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Automated barn data collection enabling environment and bird health to be monitored to the minute, while also trending daily animal performance versus standards.
Screenshots
Verdict
The clearest difference is update cadence: MTech Sonar at fortnightly against Odin Attendance's every 2 months. Odin Attendance's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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.
Odin Attendance ships an update every 2 months, MTech Sonar fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | Odin Attendance | MTech Sonar |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.4 (14 ratings) — better |
| Number of ratings | — | 14 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 33 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Odin Inc. | M-TECH SYSTEMS USA, INC. |
In-app purchases
Odin Attendance
No in-app purchases
MTech Sonar
No in-app purchases
Questions
Is Odin Attendance free?
Is MTech Sonar free?
Do Odin Attendance or MTech Sonar have ads?
Which is updated more often, Odin Attendance or MTech Sonar?
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