OASES vs Guru2 A3xx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OASES
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To enable you to optimise your operations, share data, and collaborate seamlessly across any workforce, anywhere—from head office to hangar and warehouse—at any time, Commsoft now offers OASES Mobile, which is continuously deployed and evergreen. OASES Mobile meets the unique operational needs of fixed-wing, rotary-wing, and MRO organisations, providing valuable time-saving and cost-effective features designed to streamline workflows and increase productivity. Save time and effort in the warehouse by using your own mobile device loaded with OASES Mobile. The latest features include: - Part look-up and issue - Warehouse part distribution - Bin distribution - Stock transfer - Quick requirement create - Serviceable label barcode and QR code scanning - Stock audit creation and execution - Shipping dispatch, receive, and check-in - Serviceable label printing Engineers will benefit from the time and effort saved by using OASES Mobile, with features including: - Carried forward defects by aircraft - MEL references by aircraft and chapter - Part look-up and issue - Stock levels - Quick requirement create - Book on and off task cards Using a device’s built-in hardware, users can now undertake a variety of tasks instantly in the field. For example, they can book on and off task cards in the hangar or check and issue stock in the warehouse simply by using the camera as a scanner. OASES Mobile optionally interfaces with a dedicated, ultra-tough and rugged RFID/barcode imager, allowing instant, on-the-go label printing directly from the app.
Guru2 A3xx
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The Guru2 performance calculator is designed for pilot and dispatch use and provides offline Takeoff and Landing performance calculations for the A3xx and A2xx range. Equipped with an easy to use Weight & Balance module and access to a world wide airport database. Calculations can be performed quickly and accurately while adhering to company and regulatory requirements. Calculations are performed real-time taking into consideration weather and runway conditions together with user selected aircraft settings, such as Flaps, Anti-ice, MEL items, Failures etc. To use this app you must register an account with Flygprestanda including the Gross Weight Chart service.
Screenshots
Verdict
The clearest difference is device support: OASES at 3 against Guru2 A3xx's 1. On price, update cadence, ads and in-app purchases 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.
OASES ships an update monthly, Guru2 A3xx every 3 weeks. The most recent releases landed on October 29, 2026 and October 9, 2026 respectively.
| Parameter | OASES | Guru2 A3xx |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 137 MB | 275 MB |
| Age rating | 4+ | 4+ |
| Developer | Communications Software | Flygprestanda AB |
In-app purchases
OASES
No in-app purchases
Guru2 A3xx
No in-app purchases









