CPF TechTools vs U
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.
U
Connect with local plumbing professionals for on-demand services. Request repairs, installations, and maintenance with ease. Get reliable help for all your plumbing needs.
- Connect with plumbers
- Request plumbing services
- On-demand repairs
- Installations and maintenance
- Local professional network
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U-Plumber app for customers to get plumbing services
Screenshots
Verdict
The clearest difference is rating: U at 5.0 against CPF TechTools's 4.3. U also leads on update cadence (monthly vs every 2 months) and iOS requirement (12.4 vs 14.0). CPF TechTools's advantage is ratings volume (23 vs 1). On price, ads, in-app purchases and monetization model 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.
U holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: CPF TechTools has 23 ratings behind it against 1, so its average is the more settled of the two.
CPF TechTools ships an update every 2 months, U monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | CPF TechTools | U |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (23 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 23 — better | 1 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 12.4 — better |
| Further details — not scored | ||
| Size | 8 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Charlotte Pipe and Foundry Company | Uraniumsoft |
Customer experience
CPF TechTools
U
In-app purchases
CPF TechTools
No in-app purchases
U
No in-app purchases
Questions
Is CPF TechTools free?
Is U free?
Which has better reviews, CPF TechTools or U?
Do CPF TechTools or U have ads?
Which is updated more often, CPF TechTools or U?
Other comparisons
