TC vs Exam DA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TC
This application provides comprehensive statistical analysis tools for iPad users. It offers a wide range of functions including summary statistics, various plots, probability calculations, and hypothesis testing. Data can be imported from CSV files with Dropbox integration.
- Summary Statistics
- Histograms and Box-and-Whisker Plots
- Probability Calculations
- Hypothesis Testing
- Data Import (CSV, Dropbox)
- Frequency Distribution Tables
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TC-Stats is a complete data analysis application for the iPad. The application performs the following functions: Summary Statistics, Histograms, Box-and-Whisker Plot, Normal Probability Plot, Scatter Plot, Frequency Distribution Table, Probability calculations based on the binomial, standard and non-standard normal, t, f and chi-squared distributions, one and two sample hypothesis tests based on the t and standard normal distributions, sign test, Wilkcoxon Rank-Sum, F-test, odds ratio, confidence intervals, one-way anova, Kruskal-Wallis test, chi-squared test of independence and goodness-of-fit, sample size calculations for inferences regarding a population mean or proportion. TC-Stats imports data files in csv format and has Dropbox support and supports both stacked, and unstacked data for most techniques. For more information about TC-Stats, see our information page at: http://tc-stats.taftcollege.edu
Exam DA
Prepare for the DA-100 certification exam with a practice test app. It offers updated questions, filtering tools to focus on weak areas, offline saving, and detailed explanations for each answer. An examination mode simulates the real test experience to build confidence.
- Monthly updated questions for 2025
- Exact-filtering for mistake focus
- Save difficult questions offline
- Examination mode for realistic testing
- Nearly 100% questions with explanations
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This small app was designed with love to help you 5 things: 1.question content is updated monthly in 2025, so you don’t have to worry that these question is outdated anymore. 2.With 2 EXACT-FILTERING features, you can focus easily on questions you are making mistakes or missing. 3.Save difficult questions offline. So you can practice them later when you have free time. 4.Examination mode will help you take test like a real exam. So you will be more confident. 5.NEARLY-100% questions are packed with straightforward explanations. You will know why it is correct or wrong. No more confusing. In sum, this app is simple and straight-to-the-point like description you are reading. Have fun and enjoy the app!
Screenshots
Verdict
The clearest difference is in-app purchases: TC at none against Exam DA's 1. Exam DA's advantage is review sentiment (100% vs 73%) and device support (3 vs 1). On price, update cadence, ads and monetization model 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. Exam DA sells 1 one-off in-app purchase. TC asks for nothing beyond the download.
TC ships an update every 8 months, Exam DA every 10 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | TC | Exam DA |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 72.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | — |
| Update frequency | Every 8 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 160 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Taft College | Trieu Tran |
Customer experience
TC
Exam DA
In-app purchases
TC
No in-app purchases
Exam DA
- 9.99$ For All Premium Features$9.99









