WattGuru vs GraceKit
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
WattGuru
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WattGuru turns your iPhone, iPad and Mac into a practical toolbox for electricity and energy. Calculate values, document meter readings and save calculation cases clearly โ without a WattGuru account, advertising or tracking. ELECTRICAL TOOLS - Ohm's law from any two known values - Power and current for DC, single-phase AC and three-phase AC - Cable cross-section, voltage drop and maximum cable length - Energy, runtime, battery charging and consumption costs - Series and parallel resistor networks plus voltage dividers - Conversion of electrical units METERS AND COSTS Record household, sub, appliance, generation and storage meters. Log standard and off-peak readings, follow consumption and costs in charts, and exchange your own data using CSV when needed. PROJECTS AND REFERENCE Save calculator results together with inputs and assumptions in projects. The built-in reference explains voltage, current, power, energy, cables, protective measures and safe measurement in clear language. PRIVATE AND AVAILABLE ACROSS DEVICES Your data stays on your device by default. Optional iCloud sync keeps meters, tariffs and projects in step across your own Apple devices. cgNetsphere does not receive this content. WattGuru includes no advertising, tracking or analytics services. WattGuru is a calculation, planning and documentation aid. Work on electrical installations must be carried out by qualified people. Applicable standards, protective measures and manufacturer instructions always take precedence.
GraceKit
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GraceKit is a Bible verse widget app for daily scripture, prayer, devotion, and peaceful Christian Home Screen and Lock Screen designs on iPhone and iPad. Create a calm faith-focused screen with Bible verse widgets, devotional quote widgets, prayer reminders, Christian artwork, and elegant scripture layouts. GraceKit helps you keep a meaningful verse, psalm, prayer, or reminder close throughout the day without adding complexity to your routine. What you can create with GraceKit: - Bible verse widgets for hope, peace, faith, trust, gratitude, and prayer - Verse of the day layouts for morning scripture and daily encouragement - Lock Screen widgets with short prayers, scripture references, and faith reminders - Christian quote widgets in small, medium, and large sizes - Image + verse designs with Jesus artwork, crosses, churches, stained glass, and peaceful landscapes - Custom text, fonts, colors, backgrounds, image position, and devotional styles - Seasonal designs for Sunday worship, Easter, Christmas, Advent, and everyday devotion Use GraceKit for morning prayer, Bible study, scripture memory, evening reflection, devotional journaling, or building a beautiful Christian wallpaper-style Home Screen. Whether you want a simple daily Bible verse, a prayer reminder on your Lock Screen, or a gallery of Christian widgets for different seasons of life, GraceKit gives you a focused and elegant way to make faith visible. Some styles and customization options may require GraceKit Pro. Subscription and Legal Information: GraceKit Pro monthly and yearly plans are auto-renewable subscriptions. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aquamarine-allosaurus-b35.notion.site/GraceKit-Privacy-Policy-377203b9386080d9a401eaf11a08aa33
Screenshots
Verdict
The clearest difference is update cadence: GraceKit at daily against WattGuru's fortnightly. 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. WattGuru sells 1 one-off in-app purchase and GraceKit sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
WattGuru ships an update fortnightly, GraceKit daily. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.
| Parameter | WattGuru | GraceKit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Daily โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 9 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Caklec | ็ฟผ ๅผ |
In-app purchases
WattGuru
- WattGuru Full Version$3.99
GraceKit
- GraceKit Pro Monthly$2.991 Month
- GraceKit Pro Yearly3 Days trial$19.991 Year
- GraceKit Pro Lifetime$49.99









