Comparison

gDraw vs Retime

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

gDraw

Features
Read full description

Move! Move! It moves! You can draw and move your graphs! Setting invariables in the formula and changing the value, you can move your graphs freely! AMAZINGLY MANY KINDS OF GRAPHS! You can draw many kinds of graphs by setting function such as y=f(x), x=f(y), x=f(t) and y=g(t), f(x,y)=0, pole equation. MOVE GRAPHS! This is the greatest feature of this app! We prepared "m" as an invariable. You can change the value continuously and see the graph moving. Using this feature, you can see many interesting moves, such as simple oscillation, cycloid curve, synthesis of waves. ORIGINAL KEYBOARD! We prepared the original keyboard specialized for mathematical formulas. You can type mathematical formulas very easily. SEE MANY GRAPHS SIMULTANEOUSLY! You can set unlimited number of graphs and see them simultaneously. VERY CONVENIENT TOOL "com". By using this, you can draw line segments, circles, points and texts very easily. For example, you can draw a line segments by setting the starting point and the end point. MANY INTERESTING SAMPLES! You can load many interesting samples from “Load SampleCom”. They are not only interesting, but also help you to master this app. SAVE AND LOAD GRAPHS! You can save and load your original graphs! TAKE A PHOTO OF YOUR GRAPH! You easily take a photo of your graph by pushing “photo button”.

About

Retime

This app helps serious learners manage their study time and track progress. It combines a timer, task management, and analytics to visualize daily efforts and ensure goals are met. Features include goal setting, exam countdowns, and app blocking to enhance focus.

Highlights
  • Unified task management and timer
  • Study goal progress tracking
  • Exam countdown and score tracking
  • Distracting app blocking
  • Pomodoro and count-up timer modes
  • Study time visualization
  • Customizable subjects and themes
Features
Read full description

You're studying hard, but can't see any progress. You make a plan, but somehow it always falls apart. That feeling of "working hard but getting nowhere" — Retime changes that. Retime is a study management app for serious learners, bringing together a timer, task management, and learning analytics in one place. "Plan → Focus → Record → Analyze" Complete this entire cycle in a single app. Your daily efforts become visible through graphs and numbers. Students preparing for exams, professionals studying for certifications, language learners, building a reading habit—— Retime is here for anyone who is serious about reaching their goals. Feature ① Task Management and Timer, Unified ・Manage daily tasks with a weekly calendar. Swipe smoothly between weeks ・Link tasks to your timer to accurately record what you studied and for how long ・Set up recurring tasks to automatically create your daily study routine ・Drag and drop to reschedule tasks with ease ・One glance at your to-do list tells you exactly what to study today Feature ② Track Whether You're On Pace with Study Goals ・Set concrete goals like "finish 300 pages of this textbook by [date]" ・Automatically compare your recommended daily pace against your actual progress ・A predicted completion date is always shown, so you know at a glance whether you'll make it in time ・Manage multiple goals simultaneously — exam prep, certifications, reading, and more Feature ③ Exam Countdown & Mock Exam Score Tracking ・Register your exam dates and see remaining days updated in real time ・Log your mock exam and practice test scores by subject ・Visualize your score trends with charts to see how much you've improved Feature ④ Block Distracting Apps During Study Sessions ・Block apps like social media, YouTube, and games while you study ・Effective for breaking phone addiction ・Blocking is active only while the timer is running, so the quality of your study time goes up Feature ⑤ Two Timer Modes: Pomodoro & Count-Up ・Use the Pomodoro timer to alternate between focused work and breaks, maximizing productivity ・Use the count-up timer to freely measure and log your study time ・Supports Dynamic Island and Lock Screen Live Activity — always keep an eye on your timer ・Check today's study time at a glance with the home screen widget ・Stay focused with background sounds like alpha waves, brown noise, rain, and ocean waves Feature ⑥ Visualize Study Time to Stay Motivated ・View weekly and monthly study time trends in graph form ・See a subject-by-subject breakdown to understand where your time is going ・Browse your full session history in a timeline view ・Watching your efforts pile up keeps the motivation going Feature ⑦ Customize to Make It Yours ・Set your own subject names and colors ・Change the app's theme color to match your style Suitable for every learning scenario — students, professionals studying for certifications, language learners, and anyone building a reading habit. Start recording a little every day, and keep moving toward your goal.

Screenshots

gDraw4 screens
Retime4 screens

Verdict

The call

The clearest difference is price: Retime at Free against gDraw's $1.99. Retime also leads on update cadence (every 5 days vs every 2 months). gDraw's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Retime is free to download; gDraw costs $1.99 up front. Retime sells 3 in-app purchases, starting at $1.99 per month. gDraw asks for nothing beyond the download.

UpkeepUpdate frequency

gDraw ships an update every 2 months, Retime every 5 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
gDraw versus Retime: the parameters behind the verdict, then further details
ParametergDrawRetime
Price$1.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews—72.2% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size7 MB30 MB
Age rating4+4+
DeveloperJirou FukudaRyo Iida

In-app purchases

None

gDraw

No in-app purchases

3 purchases

Retime

Subscriptions3
  • リタイム PRO 1ヶ月$1.991 Month
  • リタイム PRO 1年間 キャンペーン1 Year trial$19.991 Year
  • リタイム PRO 1年間$19.991 Year

Questions

Is gDraw free?
gDraw costs $1.99, with no in-app purchases.
Is Retime free?
Retime is free to download, with in-app purchases available.
Do gDraw or Retime have ads?
Retime shows ads; gDraw does not.
Which is updated more often, gDraw or Retime?
gDraw ships an update every 2 months, and Retime every 5 days. Most recently, gDraw was updated on October 3, 2026 and Retime on October 11, 2026.

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