CSVReader vs NAGI Step
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CSVReader
Easily view and edit CSV and TSV files on your mobile device. Import files with various character codes, sort columns, and filter data by specific conditions.
- Edit CSV and TSV files
- Import files with various character codes
- Sort columns
- Filter data by conditions
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Open, view, and edit CSV & TSV files right on your iPhone. No computer or spreadsheet app needed. CSV Reader is a fast, simple tool for working with tabular data on the go. Check an export from work, fix a typo in a data file, or find one row in thousands in just a few taps. KEY FEATURES • Edit CSV and TSV files Change cell values directly and keep your data up to date wherever you are. • No more garbled text Encodings are detected automatically, so files open correctly. That includes UTF-8, UTF-16, Windows-1252 (Excel on Windows), ISO-8859-1 (Latin-1), Mac Roman, and many more. Accented letters, curly quotes, and symbols show up exactly as they should. • Sort any column instantly Tap a column to sort in ascending or descending order. • Powerful per-column filters Set conditions on each column to narrow thousands of rows down to exactly what you need. • Easy-to-read layout Columns resize automatically to fit their content, so your data stays clear and readable. Whether you're a developer, analyst, or anyone who gets CSV files by email, CSV Reader makes handling data on mobile easy.
NAGI Step
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NAGI Step is a quiet focus app for planning what matters today, running the session, and reviewing what you finished. Where available, AI support helps turn a goal into projects, tasks, descriptions, and focus-sized steps. [Main Features] - Focus sessions: plan and run focus/break flows. - AI support (where available): create projects and tasks from a goal, draft descriptions, and split work into manageable steps. - Tasks & projects: assign tasks to sessions and keep today’s work clear. - Stats & history: daily focus totals, monthly calendar, and session records. - Memos: capture ideas during sessions and search them later. - Music Player: import local audio files and play a playlist during focus. - Notifications: local alerts for timer phase changes. [Free Plan] - Up to 2 projects. - Daily totals and monthly calendar. - Music Player. [Plus Unlocks] - Remove ads. - Create 3+ projects. - Hour-by-hour detailed stats and session list. [Best For] - Studying, deep work, and quiet task execution. - Users who want tasks, timer, memos, and history in one app. - Users who want AI-assisted planning where available. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
CSVReader and NAGI Step are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. CSVReader sells 1 one-off in-app purchase and NAGI Step sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
CSVReader ships an update monthly, NAGI Step every 3 weeks. The most recent releases landed on October 17, 2026 and October 1, 2026 respectively.
| Parameter | CSVReader | NAGI Step |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (118 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 118 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | Motoki Takahashi | Yuma Isshiki |
In-app purchases
CSVReader
- Remove ads$7.99
NAGI Step
- NAGI Timer Plus Monthly$2.991 Month
- NAGI Timer Plus Yearly$19.991 Year
- 30 AI Credits$1.99
- 100 AI Credits$4.99









