iService/ DeviceOn vs Rosetta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iService/ DeviceOn
Read full descriptionHide full description
iService/DeviceOn is an application that enables users to remotely manage devices and monitor their status, providing instant access to the latest device information.
Rosetta
Read full descriptionHide full description
Translate measurements instantly. A calm, ad-free unit converter for everyday checks — currency, weight, length, temperature, and ten more categories. Tap either side to make it the active value; both cards are first-class, so you can convert in either direction with one tap. Star up to ten favorites for one-tap reuse from the home screen. Currency rates come from the European Central Bank — cached after your first fetch, so they keep working offline. THIRTEEN CATEGORIES • Currency — 165 ISO currencies, ECB-sourced rates • Length — meters, feet, miles, kilometers, yards, inches • Mass — grams, kilograms, pounds, ounces, stones • Temperature — Celsius, Fahrenheit, Kelvin • Volume — liters, gallons, cups, fluid ounces, milliliters • Speed — m/s, km/h, mph, knots • Area — m², ft², acres, hectares • Time, Energy, Power, Pressure, Data, Angle WHY ROSETTA IS DIFFERENT • No ads. No tracking. No accounts. No analytics SDK ships in the app. • No settings to configure. The defaults are the right defaults. • Works offline. Currency rates cache after one online fetch; everything else needs no network at all. • Two-way input — convert in either direction with a single tap. • Tap any result to copy. A quiet "Copied" toast confirms. • Light and dark mode automatic, with locale-aware number formatting and gentle haptics. Free. Forever free. Made by Optiwise. Support: contact@optiwise.us Site: rosetta.optiwise.us
Screenshots
Verdict
iService/ DeviceOn and Rosetta are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.
| Parameter | iService/ DeviceOn | Rosetta |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 27 MB | 35 MB |
| Age rating | 17+ | 4+ |
| Developer | Advantech Co., Ltd. | Optiwise |
In-app purchases
iService/ DeviceOn
No in-app purchases
Rosetta
No in-app purchases
Questions
Is iService/ DeviceOn free?
Is Rosetta free?
Do iService/ DeviceOn or Rosetta have ads?
Other comparisons















