Calmetric vs NodeSpark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calmetric
Gain practical insights into your calendar year with detailed charts and metrics. Break down any date range to identify optimal times for planning, vacations, and deadlines. Enjoy a private, secure, and ad-free experience with a native iOS design.
- Year progress charts
- Date range breakdown
- Optimal date identification
- Native iOS design
- Private and secure experience
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Calmetric helps you gain practical insights into the calendar year. Use Calmetric to track the year’s progress, explore different timeframes, and make more informed planning decisions. Features: · See the year’s progress with detailed charts and metrics · Break down any date range into days, nights, weekends, and more · Identify optimal dates for vacations, meetings, and deadlines · Enjoy a native iOS design, using Apple’s latest frameworks and UI guidelines Calmetric provides a private and secure, ad-free experience—no ads, no tracking, ever. Terms of Service: https://crater.tools/calmetric/terms-of-service Privacy Policy: https://crater.tools/calmetric/privacy-policy
NodeSpark
Build and run custom automations directly on your iPhone or iPad. Create complex workflows visually, leverage AI assistance for guidance, and connect to a hub for continuous operation. Ideal for users seeking to streamline tasks without coding.
- Visual workflow builder
- AI workflow assistant (Synra)
- Template-based automation creation
- Mobile-first design
- NodeSparkHub integration
- Safe automation design
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NodeSpark helps you build real automations from your iPhone or iPad, then run them locally or connect them to NodeSparkHub for full-time automation. Create useful workflows in minutes without writing scripts, managing servers, or fighting complicated setup. Build workflows like: Create and update calendar events Send structured updates to Slack or team channels Trigger actions from app mentions or workflow events Draft repeatable automations from templates Connect mobile workflows to your Hub when you are ready Meet Synra, your AI workflow assistant Synra helps you understand screens, draft workflows, explain automation steps, and guide setup. She can help you turn an idea into a workflow draft, explain what a workflow does, and help you troubleshoot safely. Why people love NodeSpark: Templates-first: Start fast with ready-made workflow ideas Visual builder: Build logic with blocks instead of code Mobile-first: Create, edit, and inspect workflows from your device Hub-ready: Connect to NodeSparkHub for always-on automation Safe by design: Risky actions require confirmation Made for creators, teams, and power users: Build automations without needing a backend Keep workflows organized and reusable Use Synra to guide setup, explain failures, and improve workflows Start free, then unlock more power when you are ready Upgrade to Pro Unlock expanded Synra access, advanced workflow features, premium templates, and Hub-connected automation.
Screenshots
Verdict
The clearest difference is in-app purchases: Calmetric at none against NodeSpark's 2. Calmetric also leads on ratings volume (4 vs 1) and iOS requirement (18.6 vs 26.1). NodeSpark's advantage is update cadence (every 9 days vs monthly). On price, rating, ads 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
Both are free to download. NodeSpark sells 2 in-app purchases, starting at $9.99 per month. Calmetric asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Calmetric against 5.0 for NodeSpark. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Calmetric ships an update monthly, NodeSpark every 9 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Calmetric | NodeSpark |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 — better | 26.1 |
| Further details — not scored | ||
| Size | 6 MB | 164 MB |
| Age rating | 4+ | 4+ |
| Developer | Piotr Bakker | Matthew Elliott |
Customer experience
Calmetric
NodeSpark
In-app purchases
Calmetric
No in-app purchases
NodeSpark
- NodeSpark Unlimited$9.991 Month
- NodeSpark Unlimited$79.991 Year









