Ghost Auth vs UltraConvert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghost Auth
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Ghost Auth keeps your one-time passwords on your device — encrypted with AES-256, stored in your OS keychain, never uploaded. No servers to trust. No sign-up. Just your codes. Security: - AES-256 encrypted local storage - PIN lock with recovery codes - Biometric unlock - Backup & restore with password protection - Encrypted synchronization with iCloud Features: - TOTP codes for any service (Google, GitHub, Discord, etc.) - QR code scanning and manual entry - Import from Google Authenticator and other apps - Device-to-device sync - Browser extension for Chrome and Firefox - 77 languages Privacy: - No account, no cloud, no tracking - Completely offline - Open-source
UltraConvert
This app offers a comprehensive suite of conversion tools, including units, live currency and cryptocurrency rates, and various calculators. It also provides field tools like GPS, compass, weather, and world clocks, with support for widgets and Apple Watch.
- Unit conversion across 16 categories
- Live currency and cryptocurrency rates
- Standard, scientific, electronics, and metal calculators
- GPS, compass, sun position, and weather tools
- World clocks and meeting planner
- Home and Lock Screen widgets
- Apple Watch app
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UltraConvert is an all-in-one converter and utility app — units, live currency and crypto, calculators, and a set of field tools that usually need separate apps. UNIT CONVERSION • 16 categories: Length, Weight, Temperature, Volume, Speed, Area, Time, Data, Energy, Pressure, Angle, Torque, Frequency, Density, Fuel Economy, Power • Precise, verified conversion factors • Favourites and full history LIVE CURRENCY & CRYPTO • 161 currencies, updated live • Gold (XAU) spot price • 205 cryptocurrencies via CoinGecko • Keeps working offline with the last rates it fetched CALCULATORS • Standard and scientific modes, with history • Electronics: Ohm's law, power, resistor colour code, LED resistor, voltage divider, wire gauge, dB, capacitor code, battery life • Metal calculator: weight by shape and alloy • Size guide: clothing and shoe charts across regions FIELD TOOLS • GPS: coordinates in decimal, DMS and UTM; speed and altitude tracking; saved pins; GPX export • Compass with Qibla direction • Sun position: sunrise, sunset, golden hour and twilight • Weather for your location • World clocks for 90 cities, plus a meeting planner across time zones • Stopwatch with laps, countdown and interval timers — with a Live Activity on the Lock Screen WIDGETS & APPLE WATCH • Home and Lock Screen widgets for currency, crypto, weather and world clocks • Apple Watch app: quick conversions, calculator, stopwatch and compass BUILT FOR EVERY DEVICE • iPhone and iPad, with layouts that use the whole screen • Dynamic Type and VoiceOver throughout • Light and dark themes 18 LANGUAGES Arabic, Chinese, Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Thai, Turkish, Ukrainian and Vietnamese. PRIVACY No account, no ads, no tracking. What you create stays on your device — the only thing that ever leaves it is a feedback message you choose to send.
Screenshots
Verdict
The clearest difference is update cadence: Ghost Auth at every 3 days against UltraConvert's every 6 months. Ghost Auth also leads on iOS requirement (14.0 vs 17.0). 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.
Ghost Auth ships an update every 3 days, UltraConvert every 6 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.
| Parameter | Ghost Auth | UltraConvert |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Kestrel AS | Ozgur Ince |
In-app purchases
Ghost Auth
No in-app purchases
UltraConvert
No in-app purchases
