91 Payments vs Kaspa Observer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
91 Payments
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91 Payments offers a licensed environment for executing cross-border transactions. From supply chain payments to partner settlements, our infrastructure ensures your funds move securely and compliantly across borders.
Kaspa Observer
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KasObs is a read-only tracker for public Kaspa addresses. It is not a wallet and does not store private keys. Track any public address in real time, organize addresses like a portfolio, and explore on-chain activity with a fast, privacy-first experience. No account, no login. Key Features - Kaspa Hub with 4 tabs: Stream / Graph / Analytics / News - Graph explorer: interactive address graph, filters, node expansion, pagination, and pinned nodes - Analytics: Top-100 holders and Known Addresses with quick observe/open actions - Redesigned Address Viewer with a dedicated Connections section - *.kas domain resolution in address flows (including Add Address and Graph input) - Real-time balance updates - Multi-address dashboard with groups, totals, and collapsible sections - Filters and sorting by balance/name, group filters, hide totals, hide zero balances - Live KAS price with key network stats (market cap, circulating supply, difficulty, hashrate, reward, DAA score) - Interactive price chart with multiple ranges - Transaction history per address with refresh and load more - KRC-20 token balances - KRC-721 NFT holdings with media previews - KNS domains (primary name, listed status, profiles) - QR tools: scan address, show QR, share or save QR image - Open addresses in Kaspa Explorer - Offline/cache mode with network status indicators - Themes and languages support Privacy Your tracked addresses and preferences are stored on your device. Optional analytics and feedback data are sent only with your action/consent.
Screenshots
Verdict
The clearest difference is update cadence: Kaspa Observer at weekly against 91 Payments's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
91 Payments ships an update every 3 weeks, Kaspa Observer weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | 91 Payments | Kaspa Observer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 โ better | 15.5 |
| Further details โ not scored | ||
| Size | 28 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | GREY INVENT TECHNOLOGY LIMITED | Nikolai Karavanov |
In-app purchases
91 Payments
No in-app purchases
Kaspa Observer
No in-app purchases
Questions
Is 91 Payments free?
Is Kaspa Observer free?
Do 91 Payments or Kaspa Observer have ads?
Which is updated more often, 91 Payments or Kaspa Observer?
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