Phasequilib vs Reading Fluency
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phasequilib
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Основана на лабораторной работе №3 из методического пособия "Массообменные процессы. Руководство к практическим занятиям в лаборатории процессов и аппаратов нефтегазопереработки" (Т.В. Прокофьева, В.А. Щелкунов, Е.Б. Федорова). Приложение имитирует работу лабораторного прибора, предназначенного для определения коэффициента относительной летучести и составов равновесных паровой и жидкой фаз смеси изооктана и толуола. Приложение имеет встроенную инструкцию и функцию проверки ответа.
Reading Fluency
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Help your child become a confident reader. KidsRead turns daily reading into a measurable habit — kids read short, age-appropriate stories aloud while the app times them, calculates Words Per Minute (WPM), and checks understanding with a quick comprehension quiz. Built for elementary readers in Grades 1–3, KidsRead grows with your child. Every session ends with a clear score, encouragement, and the next best step — read again to beat your WPM, try a practice text to build speed, or take the quiz to prove you understood the story. WHY PARENTS LOVE KIDSREAD • Real fluency feedback — exact WPM, not guesswork • Comprehension quiz after every story — speed AND understanding matter • Practice texts suggested automatically when reading is slow • Multiple kid profiles, each with their own grade level • Beautiful, distraction-free interface designed for young readers • Parental gate protects settings and purchases HOW IT WORKS 1. Pick a story for your child's grade 2. Tap Start — read the story aloud 3. Tap Done — see WPM, evaluation, and unlock the quiz 4. Answer the comprehension questions 5. Track progress over time with the Stats tab WHAT'S INSIDE • Stories and practice texts tuned to Grades 1, 2, and 3 • Live timer with WPM calculated to the second • Three evaluation bands: Slow, Moderate, Very Good • Practice text recommendations to lift slow readers • Multiple-choice quizzes after each story • Quiz Report Card combining reading speed and comprehension • Statistics dashboard: Total Reading, Average WPM, Best WPM, Comprehension Rate • WPM Progress chart to celebrate improvement • Multiple child profiles with per-profile stats DESIGNED FOR KIDS, TRUSTED BY PARENTS KidsRead is built specifically for children. No ads, no third-party trackers, no chat features. Settings and purchases are protected by a simple parental math gate so kids stay focused on reading. PERFECT FOR • Daily at-home reading practice • Struggling readers building fluency • Confident readers chasing personal bests • Homeschool reading routines • Quick warmups before bed or school Start today and turn reading practice into something your child looks forward to. KidsRead makes every story count. Privacy Policy: https://kidsread.framer.website/privacy-policy Terms of Use / EULA: https://kidsread.framer.website/tems-of-use-eula
Screenshots
Verdict
The clearest difference is in-app purchases: Phasequilib at none against Reading Fluency's 4. Phasequilib also leads on iOS requirement (9.0 vs 17.6). On price, ads 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. Reading Fluency sells 4 in-app purchases, starting at $2.99 per 7 days. Phasequilib asks for nothing beyond the download.
| Parameter | Phasequilib | Reading Fluency |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 78 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Natalia Shelyago | Mehmet Demir |
In-app purchases
Phasequilib
No in-app purchases
Reading Fluency
- KidsRead Weekly3 Days trial$2.997 Days
- KidsRead Monthly3 Days trial$6.991 Month
- KidsRead Annual$24.991 Year
- KidsRead Lifetime Premium$34.99





