n4Studies vs Mahidol Library
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
n4Studies
This application simplifies sample size and study power calculations for various research designs. It offers tools for estimating population means and proportions, comparing groups, and analyzing different study types like case-control and randomized controlled trials. Results can be easily shared via email.
- Calculate sample size for infinite/finite populations
- Compare two population means/proportions
- Calculate sample size for various study designs
- Calculate study power for comparisons
- Calculate study power for various study designs
- Share results via email
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Ease to calculate the sample size with n4Studies. n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes. Key features: • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion • Calculate the sample size for comparing two population means and two population proportions • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • Calculate the power of a study for comparing two population means and two population proportions • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • You can send a result via Email to your colleague
Mahidol Library
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Mahidol Library Application support of student, academic, and staff teaching and research. This application provides a modern information delivery service by allowing users to access the database at any time from any location.
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Verdict
The clearest difference is price: Mahidol Library at Free against n4Studies's $1.99. Mahidol Library also leads on update cadence (every 3 weeks vs every 4 months) and device support (3 vs 1). n4Studies's advantage is chart position (#186 vs unranked). On ads and in-app purchases 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
Mahidol Library is free to download; n4Studies costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
n4Studies ships an update every 4 months, Mahidol Library every 3 weeks. The most recent releases landed on August 7, 2026 and September 10, 2026 respectively.
| Parameter | n4Studies | Mahidol Library |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #186 — better | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 71 MB |
| Age rating | 4+ | 12+ |
| Developer | Chetta Ngamjarus | MAHIDOL UNIVERSITY LIBRARY AND KNOWLEDGE CENTER |
In-app purchases
n4Studies
No in-app purchases
Mahidol Library
No in-app purchases
Questions
Is n4Studies free?
Is Mahidol Library free?
Do n4Studies or Mahidol Library have ads?
Which is updated more often, n4Studies or Mahidol Library?
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