Gagemaker MRP 5B Calculator vs JMAC Driver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gagemaker MRP 5B Calculator
Calculate ovality and standoff for API 5B connections using crest diameter readings. This tool provides results that comply with the Sixteenth Edition of API 5B, informing you if your measurements meet published requirements.
- Calculate ovality
- Calculate standoff
- API 5B compliance
- Input crest diameter readings
- Check against published requirements
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Gagemaker’s MRP® 5B Calculator allows you to calculate ovality and standoff of your API 5B connections based on your crest diameter readings. Formulas and data comply with the Sixteenth Edition of API 5B. Simply input the values from your inspection with an MRP® crest diameter and ovality gage and our calculator will provide you with the ovality and standoff, as well as inform you that these results meet the published requirements.
JMAC Driver
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Purpose of this app is to navigate and help drivers to load and offload products for the petrochemical industry. App connects with Zebra printer to print blank job sheet at the time of product loading at terminal and print delivery ticket after offloading product at offload location.
Screenshots
Verdict
The clearest difference is update cadence: JMAC Driver at every 6 weeks against Gagemaker MRP 5B Calculator's every 7 months. Gagemaker MRP 5B Calculator's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 15.6). On price, ads and in-app purchases 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.
Gagemaker MRP 5B Calculator ships an update every 7 months, JMAC Driver every 6 weeks. The most recent releases landed on October 5, 2026 and May 18, 2026 respectively.
| Parameter | Gagemaker MRP 5B Calculator | JMAC Driver |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 7 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 86 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Crocodile Software Corporation | J.P. McMahon Leasing, LLC |
In-app purchases
Gagemaker MRP 5B Calculator
No in-app purchases
JMAC Driver
No in-app purchases
Questions
Is Gagemaker MRP 5B Calculator free?
Is JMAC Driver free?
Do Gagemaker MRP 5B Calculator or JMAC Driver have ads?
Which is updated more often, Gagemaker MRP 5B Calculator or JMAC Driver?
Other comparisons
