Duffle vs FLEX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Duffle
Easily spend, send, and receive digital currencies with this app. It supports various cryptocurrencies and networks, offering a secure and simplified way to manage your assets without requiring crypto knowledge from merchants. Refer friends to earn rewards and grow your portfolio.
- Spend crypto anywhere
- Simplified sending and receiving
- Duffle Tags for easy transactions
- Support for multiple cryptocurrencies and networks
- Military-grade encryption for security
- Refer and earn rewards
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Duffle lets you send, receive and use crypto from your phone. SEND AND RECEIVE Send crypto to a wallet address or another Duffle user with their @tag. Request a payment from friends and view your transaction history. BUY, SELL AND PAY Buy and sell supported coins. Pay a bank or mobile money account where available, or scan an Ivorypay QR code to pay a business. Review the exchange rate, fees and amount before you confirm. MANAGE YOUR WALLET See your available balances and choose from the coins and networks currently supported in the app. Protect access with a PIN or biometrics. REFER & EARN Invite friends and track eligible referral rewards. Campaign terms and availability are shown in the app. Features, payment methods and limits depend on your country and verification level.
FLEX
Send and receive money instantly in Nigeria using a unique PayTag. Easily pay merchants via QR codes or directly in the app, and request funds with notes for clear tracking. Upgrade your tier for higher limits and enhanced features.
- Instant money sending and receiving
- Pay with PayTag
- Merchant QR code payments
- Request money with notes
- Tiered verification for higher limits
- Real-time transaction tracking
- In-app support
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FLEX Move Money. Move Freely. FLEX is the fast and secure way to send and receive money in Nigeria. You can pay anyone, anytime, without account numbers or extra fees. Send and Receive Instantly Transfer to anyone using a PayTag. Send or receive in seconds and track every transaction in real time. Pay Merchants Easily Scan a merchant QR code or pay directly inside the app. Request Money Fast Use FLEXme to ask for money and get paid faster. Add a note so people know what it’s for. Keep your payment history organized and accessible. Verify and Upgrade Your FLEX Tier Verification unlocks higher spending limits and full access to FLEX features. Move from Silver to Gold, Platinum, and Diamond Reserve as you complete verification. Each tier gives you more room to transact confidently and securely. Stay Secure and In Control Built with top-tier security for every payment. Instant alerts keep you updated as money moves. One app for all your transfers, rewards, and everyday spending. FLEX combines speed, trust, and simplicity in one app. *FLEX is a financial services platform, not a bank. Banking services are provided by our regulated partners. Contact FLEX Support in-app, via email at: techsupport@yourflexpay.com
Screenshots
Verdict
The clearest difference is ads: FLEX at none against Duffle's shown. FLEX also leads on monetization model (free vs ad-supported). Duffle's advantage is rating (5.0 vs 4.7) and update cadence (every 6 days vs every 2 weeks). On price, review sentiment, ratings volume and in-app purchases 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.
Duffle holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Duffle ships an update every 6 days, FLEX every 2 weeks. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.
| Parameter | Duffle | FLEX |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.7 (11 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 11 — better |
| Update frequency | Every 6 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 119 MB | 151 MB |
| Age rating | 4+ | 4+ |
| Developer | IVORYCHAIN TECHNOLOGIES (PTY) LTD | Koinage LLC |
Customer experience
Duffle
FLEX
In-app purchases
Duffle
No in-app purchases
FLEX
No in-app purchases









