Comparison

JackDMS vs Geek Math

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

Head to head
About

JackDMS

Features
Read full description

JackDms是杰克缝纫机信息中心自主研发的用于经销商的进销存系统。

About

Geek Math

This calculator app features an intuitive column layout for multiple equations, allowing real-time modification of numbers and operators. It offers interactive linking of numbers and a unique lock feature to protect important values.

Highlights
  • Intuitive column layout
  • Real-time equation modification
  • Linked numbers for interactive calculation
  • Lock feature for number protection
  • Multi-line display
  • Theme selection
Features
Read full description

* Intuitive column layout displaying multiple equations on the same screen * Ability to modify operands and operators at any time * Linked numbers that calculate interactively in real-time The calculator's display and operation have been redesigned from the ground up. Calculator Features: - Multi-line Display: Equations are clearly displayed line by line, with the length of numbers and operators automatically adjusted to fit the screen width. - Equation Modification: Freely select and change numbers within equations. Operators can also be modified to alter the results. - Linking and Interaction: Numbers in links update interactively. A single number can be linked to multiple numbers. - Theme Selection: Choose from white, black, brown, and more than three different theme colors. - Delete Functions: "AC" for full clear, erasing the entire calculator screen. "R" for line clear, removing one line from the list. "C" for clear, resetting a number to zero. "BS" for backspace, deleting the previous input. - Lock Feature: Replaces traditional memory functions with a more intuitive lock feature. Protect numbers you don't want to delete with a single button lock. - Save Previous Equations: Even if you restart your device, leave the application unopened for an extended period, or switch between applications, previous equations will be saved. Give the Geek Calculator a try! Perhaps this is the perfect calculator application for you.

Screenshots

JackDMS3 screens
Geek Math4 screens

Verdict

The call

The clearest difference is in-app purchases: JackDMS at none against Geek Math's 1. JackDMS also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 10 months). On price, device support and iOS requirement 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

Both are free to download. Geek Math sells 1 one-off in-app purchase. JackDMS asks for nothing beyond the download.

UpkeepUpdate frequency

JackDMS ships an update every 3 weeks, Geek Math every 10 months. The most recent releases landed on August 10, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
JackDMS versus Geek Math: the parameters behind the verdict, then further details
ParameterJackDMSGeek Math
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size71 MB29 MB
Age rating17+4+
Developer帅 倪QQ TSUBASA

In-app purchases

None

JackDMS

No in-app purchases

1 purchases

Geek Math

One-time1
  • Premium No ad & more math rows$1.99

Questions

Is JackDMS free?
JackDMS is free to download, with no in-app purchases.
Is Geek Math free?
Geek Math is free to download, with in-app purchases available.
Do JackDMS or Geek Math have ads?
Geek Math shows ads; JackDMS does not.
Which is updated more often, JackDMS or Geek Math?
JackDMS ships an update every 3 weeks, and Geek Math every 10 months. Most recently, JackDMS was updated on August 10, 2026 and Geek Math on September 9, 2026.

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