Convertly vs Backster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Convertly
This app provides real-time exchange rates for over 160 world currencies and 100 cryptocurrencies. It offers seamless any-to-any conversions with a fast, intuitive interface and smart currency lists. Ideal for travelers, freelancers, and crypto traders.
- 160+ world currencies
- 100+ cryptocurrencies
- Real-time crypto streaming
- Hourly fiat rate refresh
- Any-to-any conversions
- Intuitive UI
- Light & dark themes
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Convertly — The All-in-One Currency Converter Whether you're globe-trotting, freelancing across borders, shopping online, or tracking digital assets, Convertly puts real-time exchange power in your pocket. Why Choose Convertly? 160+ World Currencies, 100+ Cryptocurrencies From dollars, euros, and yen to Bitcoin, Ethereum, and Solana — Convertly covers the currencies you actually use. Fiat rates refresh every hour; crypto prices stream live so you always see the latest market rate. Seamless Any-to-Any Conversions Fiat ↔ Fiat · Crypto ↔ Crypto · Fiat ↔ Crypto — all in one tap. Lightning-Fast, Intuitive UI Clean keypad, instant results, zero clutter. Smart Currency & Coin Lists Find and favorite the currencies you need most. Elegant Light & Dark Themes Smooth visuals that adapt to your device. Traveler-Friendly Know exactly what you'll spend abroad before you swipe the card. Multi-Currency Companion Whether you're checking exchange rates for a trip, comparing prices across markets, or tracking crypto gains in your local currency — Convertly has you covered. Perfect For: Tourists & frequent flyers Freelancers & remote workers paid in multiple currencies International shoppers & drop-shippers Crypto traders & investors Business pros managing global invoices or payroll Feature Highlights One-screen quick-convert calculator Hourly fiat refresh; continuous crypto feed Haptic feedback Stay ahead of your money — whether you're comparing hotel prices in euros, invoicing a client in pounds, sending money home in pesos, or checking the latest crypto rates. Convertly makes currency conversion effortless, beautiful, and trustworthy. Download Convertly today — your global currency companion! Subscription Info Hourly fiat-rate updates and advanced features require a Convertly Pro subscription. Apple Terms of Use for In-App Purchases: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Backster
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Before you trade it, Backster it. Describe a trading idea in plain English and Backster turns it into a real, runnable strategy — then shows you exactly how it would have played out on years of historical crypto data. No exchange account, no real money, nothing to lose but a bad idea. DESCRIBE IT, DON'T CODE IT Say it the way you'd think it — "buy when RSI drops below 30, take profit at 5%" — and Backster writes the real strategy code behind it. It's production-grade Freqtrade, the same open-source framework serious crypto traders use, not toy snippets. No programming required. YEARS OF DATA, ANSWERED IN SECONDS Backtest any strategy against years of real historical crypto markets in seconds. See every trade it would have made — the wins, the losses, and whether the idea actually holds up — before you ever risk a cent. WATCH IT TRADE, RISK-FREE Turn a strategy into a paper bot: a fully simulated trader that runs on live market data and shows you how it would perform in real time. All simulation, always. Never a dollar of real money. TEST EVERYTHING, RISK NOTHING Backster is built for learning. Test, tweak, and compare as many ideas as you want, and build real intuition for how strategies behave without ever putting money on the line. PLANS Backster is free to start. Pro, Max, and Ultra unlock a higher monthly usage allowance and 1, 3, or 6 concurrent paper bots. Subscriptions bill monthly through your Apple Account and renew automatically until cancelled in Settings. IMPORTANT Backster is an education and simulation tool. It is not a broker, does not connect to exchanges, does not execute real trades, and does not provide financial advice. Past (simulated) performance does not guarantee future results. Terms: https://api.backster.app/legal/terms Privacy: https://api.backster.app/legal/privacy
Screenshots
Verdict
Convertly and Backster 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. Convertly sells 1 in-app purchase, starting at $4.99 per month and Backster sells 6 in-app purchases, starting at $4.00 per 7 days. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly weekly. Both last shipped on October 25, 2026.
| Parameter | Convertly | Backster |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 8 MB | 7 MB |
| Age rating | 4+ | 17+ |
| Developer | JA Tech | Elgene Lye |
In-app purchases
Convertly
- Monthly7 Days trial$4.991 Month
Backster
- Pro$4.007 Days
- Max$13.497 Days
- Pro$14.991 Month
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- Max$49.991 Month
- Ultra$54.007 Days
- Ultra$200.001 Month









