CPF TechTools vs ISAQR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CPF TechTools
This app offers essential on-the-go technical calculators for plumbing professionals. It includes tools for expansion/contraction and temperature de-rating, with more features planned for future updates.
- Expansion calculator
- Contraction calculator
- Temperature de-rating calculator
- Tools for plumbing professionals
- Future tool additions planned
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Charlotte Pipe Tech Tools App provides simple, on-the-go technical tools for the plumbing industry. Tools featured include an expansion and contraction calculator and a temperature de-rating calculator. Ideal for plumbing engineers, contractors, architects and other industry professionals. Additional tools will be added soon.
ISAQR
Access essential data for building trades professionals and local union members. Make informed business decisions with critical information for daily work processes.
- Local union membership access
- Contractor information
- Critical data for business decisions
- Online access to data
- Building trades industry focus
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Provides Local Union Membership and Contractors in the Building Trades Industry online access to critical data elements required to make business decisions in their daily work processes.
Screenshots
Verdict
The clearest difference is rating: CPF TechTools at 4.5 against ISAQR's 1.9. CPF TechTools also leads on review sentiment (55% vs 18%). ISAQR's advantage is update cadence (fortnightly vs every 2 months). On price, ratings volume, 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.
CPF TechTools holds the better App Store score, 4.5 against 1.9. Both are backed by a comparable volume of ratings — 22 and 64 respectively. Written reviews point the same way: 55% of CPF TechTools's written reviews are positive against 18% of ISAQR's.
CPF TechTools ships an update every 2 months, ISAQR fortnightly. The most recent releases landed on July 7, 2026 and September 21, 2026 respectively.
| Parameter | CPF TechTools | ISAQR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (22 ratings) — better | 1.9 (64 ratings) |
| Positive reviews | 54.5% of reviews — better | 18.2% of reviews |
| Number of ratings | 22 | 64 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.2.0 |
| Further details — not scored | ||
| Size | 8 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | Charlotte Pipe and Foundry Company | paras arora |
Customer experience
CPF TechTools
ISAQR
In-app purchases
CPF TechTools
No in-app purchases
ISAQR
No in-app purchases
Questions
Is CPF TechTools free?
Is ISAQR free?
Which has better reviews, CPF TechTools or ISAQR?
Do CPF TechTools or ISAQR have ads?
Which is updated more often, CPF TechTools or ISAQR?
Other comparisons
