OWA vs ec Fast Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OWA
This internal tool allows authorized users to manage watch warranties and access details about sold timepieces. Log in to activate warranties and view comprehensive information on Oris watches.
- Activate watch warranties
- View sold watch details
- Internal Oris application
- Manage watch information
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OWA, Oris Warranty Activation, is an internal Oris application to manage watches warranty. Download this application and when logged-in, you will be able to activate warranties and obtain details on sold watches.
ec Fast Calc
This app simplifies daily calculations with an intuitive interface. It allows for effortless bill splitting with friends, group expense management, and date/time calculations. Enjoy powerful features and multi-language support for all your computing needs.
- Bill splitting with friends
- Group expense management
- Weight and package comparison
- Date and time calculations
- Multi-language support
- Intuitive interface
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FastCalc is your all-in-one smart calculator designed to simplify your daily life! Effortlessly split bills with friends, manage group expenses, compare weights and packages, and calculate dates and times—all in one intuitive app. FastCalc makes complex calculations easy, whether you’re dining out, traveling, or planning events. Enjoy a clean interface, powerful features, and support for multiple languages. Download FastCalc now and make every calculation fast, accurate, and stress-free!
Screenshots
Verdict
The clearest difference is rating: ec Fast Calc at 5.0 against OWA's 1.8. ec Fast Calc also leads on update cadence (weekly vs every 5 months). OWA's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.
ec Fast Calc holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
OWA ships an update every 5 months, ec Fast Calc weekly. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.
| Parameter | OWA | ec Fast Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.2 — better | 17 |
| Further details — not scored | ||
| Size | 41 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Oris SA | EC Fast Worldwide Limited |
Customer experience
OWA
ec Fast Calc
In-app purchases
OWA
No in-app purchases
ec Fast Calc
No in-app purchases
