Comparison

HashWatcher vs SciCalc

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

Head to head
About

HashWatcher

Monitor and control your Bitcoin mining hardware fleet from a single, intuitive interface. Optimize performance, track key metrics, and receive alerts for your mining operations. Integrates with solar power systems for smarter energy management.

Highlights
  • Fleet monitoring dashboard
  • Real-time hashrate, power, temp tracking
  • Miner controls (overclocking, modes)
  • Solar power integration
  • Remote monitoring via Hub/Gateway
  • Alerts for temperature, anomalies, etc.
  • iOS widgets and Apple Watch support
Features
Read full description

HashWatcher is a fast, local-first dashboard for monitoring and controlling Bitcoin mining hardware from one clean view. Track your entire fleet without filling your Home Screen with IP shortcuts. See hashrate, power, temperature, efficiency, uptime, pool status, and alerts across all supported miners. SolarWatcher Use solar, battery, grid, and home-load data to run miners smarter. SolarWatcher can help supported miners follow available surplus power, protect battery reserve, and automatically step between Low Power, Eco, Standard, and Super modes. Supported SolarWatcher integrations include Victron VRM, Home Assistant, Enphase IQ Gateway, APsystems EZ1, EcoFlow, Solar Assistant, and SolarEdge where configured. Fleet Monitoring -Bird’s-eye view of all miners -Real-time hashrate, power, temp, efficiency, uptime, and status -Charts and local telemetry history -Miner detail dashboards for troubleshooting -Temperature, VR temp, anomaly, block-found, and best-difficulty alerts Miner Controls -Overclocking and performance modes for supported solo miners -Braiins OS, LuxOS, VNish, BitAxe-family, NMMiner/NerdQaxe, Canaan, FutureBit, Lucky Miner, Hammer, HarloOS, Zyber, and Bitdsk support -Supported Canaan controls including work modes, fan controls, LED/LCD options, and scheduling -Supported Antminer-class devices when running compatible firmware such as Braiins OS, LuxOS, or VNish Remote Monitoring -HashWatcher Hub/Gateway lets you monitor miners away from home through a private remote-access path. No port forwarding or dynamic DNS required. -Reports and Tools -Daily PDF reports -Maintenance planning and reminders -Energy and output tracking -Leaderboards and performance comparison -iOS widgets, Lock Screen widgets, Apple Watch support, and Mac menu bar stats Supported examples include BitAxe Max, Ultra, Supra, Gamma, Gamma Turbo, Supra Hex, NerdQAxe+, NerdQAxe++, NerdQAxe+ Hydro running ESP-Miner, LuckyMiner LV06/LV08, Canaan Avalon Nano 3/Nano 3S, Avalon Q, Avalon Mini 3, Antminer S21/S19/S17-series devices and Braiins BMM101 devices.... and more. Privacy HashWatcher reads miner data directly from devices you configure. Optional cloud-backed features are used only for services such as Hub connectivity, alerts, leaderboards, and app features that need them. HashWatcher does not mine cryptocurrency. It monitors and manages supported mining hardware. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SciCalc

Features
Read full description

SciCalc is the scientific calculator that finally feels right on iPhone and iPad — fast, beautiful, and powerful enough for real math, yet simple enough to grab for a quick sum. Type a whole expression the way you'd write it on paper, press =, and get the exact answer. Operator precedence, parentheses, and constants are all handled correctly. No clunky one-number-at-a-time entry. GRAPHING — NOW FREE TO TRY • Plot a function of x — sin(x), x²−3, 1/x, e^x, and more • Pinch to zoom, drag to pan, and trace to read exact coordinates • Smart handling of asymptotes so curves never smear across the screen • Go Pro to graph up to six functions at once, each in its own color A REAL MATH ENGINE • Full order of operations with nested parentheses • Trigonometry in degrees or radians (sin, cos, tan + inverses) • Logarithms (log, ln), powers, roots, and exponentials • Factorials — including non-integers via the gamma function • Constants π and τ as proper symbols, plus e • Memory keys (M+, M−, MR) and a running Ans BUILT FOR THE WAY YOU WORK • A scrolling tape remembers every calculation • Tap any past line to reuse its expression or result • Tap anywhere on the input line to place the cursor exactly where you want it • A dedicated landscape keypad puts every function on one screen • Clean, high-contrast design that's easy on the eyes day or night SCICALC PRO The free version is supported by ads. Upgrade to Pro with an auto-renewable subscription to: • Remove all ads • Graph up to six functions at once • Keep unlimited history — no 50-entry limit • Sync your history across all your devices with iCloud Subscriptions are offered Monthly or Annually. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mwsupplylimited.github.io/scicalc/privacy.html

Screenshots

HashWatcher4 screens
SciCalc4 screens

Verdict

The call

The clearest difference is ads: HashWatcher at none against SciCalc's shown. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HashWatcher sells 3 in-app purchases, starting at $2.99 per month and SciCalc sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HashWatcher ships an update every 5 days, SciCalc weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
HashWatcher versus SciCalc: the parameters behind the verdict, then further details
ParameterHashWatcherSciCalc
PriceFreeFree
Rating4.9 (491 ratings) — better—
Positive reviews87.0% of reviews—
Number of ratings491 — better—
Update frequencyEvery 5 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size215 MB12 MB
Age rating4+4+
DeveloperEngineered Essentials Ventures, LLCMatthew Wong

In-app purchases

3 purchases

HashWatcher

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly$19.991 Year
One-time1
  • Lifetime Premium$39.99
2 purchases

SciCalc

Subscriptions2
  • SciCalc Pro Monthly$1.991 Month
  • SciCalc Pro Annual7 Days trial$9.991 Year

Questions

Is HashWatcher free?
HashWatcher is free to download, with in-app purchases available.
Is SciCalc free?
SciCalc is free to download, with in-app purchases available.
Do HashWatcher or SciCalc have ads?
SciCalc shows ads; HashWatcher does not.
Which is updated more often, HashWatcher or SciCalc?
HashWatcher ships an update every 5 days, and SciCalc weekly. Most recently, HashWatcher was updated on October 30, 2026 and SciCalc on October 31, 2026.

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