SEC Calculator vs TÜNKERS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SEC Calculator
This tool assists businesses in assessing energy usage and cost reduction through equipment improvements or new system investments. It calculates potential annual savings and CO2 emission reductions, benchmarks sites against best practices, and generates a personalized PDF report.
- Energy usage assessment
- Cost reduction calculation
- CO2 emission reduction tracking
- Site benchmarking
- Personalized PDF reports
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Output from this app helps TCS&D businesses carry out an initial assessment of how improvements to existing equipment or investment in new systems can reduce energy usage and cut running costs. Users enter their plant details and are given a calculation of how much money they can save over a year along with a reduction of CO2 from their output. Their site is benchmarked against best practice and they recieve a personal report in PDF form.
TÜNKERS
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Die neue TÜNKERS-App bietet schnellen Zugriff zu allen relevanten Informationen zu unseren Automotive-Produkten wie Kataloge, Datenblätter, CAD-Daten, Ersatzteildokumentation etc., sowie direkten Zugang zum eShop, zur TÜNKERS-Cloud und Kontaktdaten.
Screenshots
Verdict
The clearest difference is update cadence: TÜNKERS at every 9 months against SEC Calculator's every 27 months. SEC Calculator's advantage is iOS requirement (11.0 vs 15.1). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SEC Calculator ships an update every 27 months, TÜNKERS every 9 months. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.
| Parameter | SEC Calculator | TÜNKERS |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 27 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 32 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Star Refrigeration Ltd | w63 GmbH |
In-app purchases
SEC Calculator
No in-app purchases
TÜNKERS
No in-app purchases
