Comparison

OpenChart vs WatchOnly

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

OpenChart

Features
Read full description

OpenChart helps you find coins on the move, compare prices across exchanges, and open charts instantly. Scan the market, spot what catches your attention, and take a closer look. - No sign-up required. - No email address or sensitive personal information required. - No wallet connection or exchange API keys required. - No ads. Just the market, at a glance. Built for fast market monitoring. - Quickly scan the market for coins that are moving - Explore fast, responsive crypto charts - Compare prices for the same coin across exchanges with watchlists - Analyze charts with drawing tools and technical indicators - Get notified when prices reach your targets - Monitor prices with Home Screen widgets - Follow spot and futures market data across multiple exchanges OpenChart brings market discovery, price tracking, and chart analysis together, so you can go from finding a moving coin to understanding its chart in seconds. OpenChart is a read-only market data and charting application. It does not provide cryptocurrency trading, order placement, brokerage services, deposits, withdrawals, cryptocurrency custody, or exchange account connections. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/linktrader-privacy-policy

About

WatchOnly

Features
Read full description

WatchOnly is a local-first, read-only Bitcoin dashboard for your existing self-custody setup. Import a public descriptor or xpub to view balances, activity, confirmations and UTXOs across your wallets. Review address reuse, connection exposure and other practical privacy signals, then choose the blockchain source that fits your setup: your own server, a Tor-proxied public source or a direct public source. Your wallet data stays on your device in protected local storage. WatchOnly has no accounts, ads, analytics, cloud sync or WatchOnly-operated backend. It never asks for or stores recovery phrases, private keys, wallet PINs or passphrases. WatchOnly cannot create, sign or broadcast transactions. It complements a signing wallet and a properly maintained recovery backup; it does not replace either one and does not provide financial advice.

Screenshots

OpenChart4 screens
WatchOnly4 screens

Verdict

The call

The clearest difference is in-app purchases: WatchOnly at none against OpenChart's 2. WatchOnly also leads on iOS requirement (14.0 vs 17.0). OpenChart's advantage is update cadence (every 8 days vs every 6 weeks). On price, ads 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. OpenChart sells 2 in-app purchases, starting at $3.99 per month. WatchOnly asks for nothing beyond the download.

UpkeepUpdate frequency

OpenChart ships an update every 8 days, WatchOnly every 6 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

Scorecard3 real differences ยท 3 level
OpenChart versus WatchOnly: the parameters behind the verdict, then further details
ParameterOpenChartWatchOnly
PriceFreeFree
Update frequencyEvery 8 days โ€” betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.014.0 โ€” better
Further details โ€” not scored
Size67 MB23 MB
Age rating4+4+
Developeryounghyun choiLiberBlock LLC

In-app purchases

2 purchases

OpenChart

Subscriptions2
  • OpenChart PRO$3.991 Month
  • OpenChart Pro Yearly$29.991 Year
None

WatchOnly

No in-app purchases

Questions

Is OpenChart free?
OpenChart is free to download, with in-app purchases available.
Is WatchOnly free?
WatchOnly is free to download, with no in-app purchases.
Do OpenChart or WatchOnly have ads?
Neither OpenChart nor WatchOnly shows ads.
Which is updated more often, OpenChart or WatchOnly?
OpenChart ships an update every 8 days, and WatchOnly every 6 weeks. Most recently, OpenChart was updated on October 10, 2026 and WatchOnly on October 15, 2026.

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