Comparison

gDraw vs Vulpe

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

Head to head
About

gDraw

Features
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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

Vulpe

This app helps you manage your reading goals by breaking down large books into daily page targets. It visualizes your progress, alerting you if you're ahead or behind schedule. Log your daily study sessions to stay on track and achieve your academic objectives.

Highlights
  • Set book completion dates
  • Calculate daily page goals
  • Log daily study progress
  • Visualize progress ahead/behind schedule
  • Receive progress notifications
  • Archive completed goals
Features
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Vulpe helps you stay on track and finish your reference books as planned. It visualizes your progress and shows how far ahead or behind schedule you are, so you always know where you stand. If you’re behind, study a bit more to catch up. If you’re ahead, enjoy the extra time or move further ahead. Just set your completion date, and Vulpe calculates how many pages to study each day. Follow the plan and reach your goal with ease. How it works: 1. Add your book, total pages, and target date. 2. Log your daily study progress. 3. Get notified when you’re falling behind or moving ahead. 4. Archive completed goals and track your achievements anytime. Start your efficient, well-organized study routine with Vulpe today.

Screenshots

gDraw4 screens
Vulpe4 screens

Verdict

The call

The clearest difference is price: Vulpe at Free against gDraw's $1.99. Vulpe also leads on update cadence (every 2 weeks vs every 2 months). gDraw's advantage is in-app purchases (none vs 4) 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

Vulpe is free to download; gDraw costs $1.99 up front. Vulpe sells 4 in-app purchases, starting at $3.99 per month. gDraw asks for nothing beyond the download.

UpkeepUpdate frequency

gDraw ships an update every 2 months, Vulpe every 2 weeks. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
gDraw versus Vulpe: the parameters behind the verdict, then further details
ParametergDrawVulpe
Price$1.99Free — better
Rating—4.3 (4 ratings) — better
Positive reviews—95.5% of reviews
Number of ratings—4 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size7 MB187 MB
Age rating4+4+
DeveloperJirou FukudaUniLink Inc.

In-app purchases

None

gDraw

No in-app purchases

4 purchases

Vulpe

Subscriptions3
  • Vulpe Premium Monthly7 Days trial$3.991 Month
  • Vulpe Premium Annual7 Days trial$12.991 Year
  • Vulpe Premium Yearly7 Days trial$39.991 Year
One-time1
  • Vulpe Premium Outright$29.99

Questions

Is gDraw free?
gDraw costs $1.99, with no in-app purchases.
Is Vulpe free?
Vulpe is free to download, with in-app purchases available.
Do gDraw or Vulpe have ads?
Vulpe shows ads; gDraw does not.
Which is updated more often, gDraw or Vulpe?
gDraw ships an update every 2 months, and Vulpe every 2 weeks. Most recently, gDraw was updated on October 29, 2026 and Vulpe on November 3, 2026.

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