Optim System app vs Zairos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optim System app
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Personal and business online payments with competitive exchange rates, virtual cards, and secure money-management tools — all from one WeOpsy account Bank transfers and payments. Enjoy same-day execution on local transactions with a personalized IBAN, secure global reach through the SWIFT network, and instant access to newly issued virtual cards for seamless online spending
Zairos
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At Zairos, we empower businesses and high net worth individuals with solutions to streamline global transactions. Benefit from business-specific IBANs designed for easy management of international payments. Enjoy competitive FX rates with transparent pricing and flexible expense management through our range of debit, prepaid, and virtual Mastercards, all integrated with Apple Pay, Google Pay or Samsung Pay. Our advanced tools for expense tracking, receipt capture, and accounting software integration ensure precision in financial operations. Seamless API integrations enable smooth data transfers and payment processing, while our 24/7 dedicated support team provides personalised assistance whenever you need it.
Screenshots
Verdict
Optim System app and Zairos are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.
| Parameter | Optim System app | Zairos |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 9 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 44 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Optim Systems, Ltd. | Equals Money PLC |
In-app purchases
Optim System app
No in-app purchases
Zairos
No in-app purchases
