Metrify vs BrainBoost
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Metrify
Effortlessly convert between imperial and metric units, and currencies, with this clean and fast utility. Ideal for everyday tasks like cooking, shopping, and travel, it simplifies comparisons and calculations.
- Imperial to metric conversion
- Currency conversion
- Price comparison
- Supports cooking, shopping, travel
- Distraction-free design
Read full descriptionHide full description
Metrify makes conversions effortless. Perfect for anyone in the US tired of Fahrenheit, miles, pounds, and tablespoons. Quickly switch to Celsius, kilometers, grams, or milliliters — just by typing them in. Why Metrify? - Convert imperial ↔ metric instantly - Works with everyday things: cooking, shopping, driving, traveling - Compare prices easily (gas, groceries, real estate) - Currency conversions + unit conversions in one app - Clean, fast, distraction-free design Stop struggling with conversions — let Metrify do the math. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BrainBoost
This AI chatbot leverages GPT-3 to provide business insights and answers across various tech and finance fields. It helps generate ideas, improve customer service, and offer product recommendations, all powered by advanced natural language processing.
- AI-powered business chatbot
- GPT-3 integration
- Idea generation
- Customer service automation
- Product recommendations
- Business insights
Read full descriptionHide full description
BrainBoost will amaze you. Unlock the Power of AI with our AI chatbot for Business. Get new ideas and answers faster than ever. The quality of the answers depend on the quality of your questions. Please take the opportunity and be smart with the questions. BrainBoost is customised to provide very good answers into the field of augmented reality, big data, internet of things, apps development, cloud computing, cryptocurrency, marketing, Human Resources and finances. BrainBoost provide a cost-effective and efficient way to answer customer questions and provide ideas. BrainBoost is powered by artificial intelligence and natural language processing, it understand customer queries and provide accurate responses. BrainBoost can be used to provide customer service, answer frequently asked questions, and provide product recommendations. BrainBoost can also be used to provide ideas and suggestions. They can be programmed to recognize customer needs and provide ideas and suggestions that can help customers achieve their goals. BrainBoost can also be used to provide feedback and insights. BrainBoost can be programmed to recognize customer feedback and provide insights that can help businesses improve their products and services. This description has been created with Brainboost. Download it now!
Screenshots
Verdict
The clearest difference is review sentiment: BrainBoost at 100% against Metrify's 0%. BrainBoost also leads on rating (5.0 vs 3.9) and ads (none vs shown). Metrify's advantage is ratings volume (7 vs 2). On price, update cadence, 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. Metrify sells 3 in-app purchases, starting at $0.99 per month and BrainBoost sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
BrainBoost holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 0% of Metrify's written reviews are positive against 100% of BrainBoost's.
Metrify ships an update every 9 days, BrainBoost every 2 weeks. The most recent releases landed on November 13, 2026 and November 3, 2026 respectively.
| Parameter | Metrify | BrainBoost |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 2 |
| Update frequency | Every 9 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsuyoshi Niwa | Jorge Gregorio Martin Bello |
Customer experience
Metrify
BrainBoost
In-app purchases
Metrify
- Monthly Subscription1 Month trial$0.991 Month
- Yearly Subscription$9.991 Year
- Lifetime Pro$39.99
BrainBoost
- 4 Credits$2.99
- 20 Credits$9.99
- 40 Credits$19.99
Show 1 moreShow fewer
- 100 Credits$39.99









