IPA Reader vs Slash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IPA Reader
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IPA Reader adds IPA phonetic transcription to English PDFs and web pages. Tap any word to hear how it sounds and see what it means, without leaving the page. Reading in English gets slow when you are unsure how a word sounds, and stopping to look it up breaks your concentration. IPA Reader keeps the phonetics, the meaning and the audio in the same place as the text. READ - BROWSER, PDF AND READER MODE - Built-in browser with Bing or Google search, plus a PDF reader, both with automatic IPA annotation - Every line of a PDF is annotated, including tightly spaced body text - Open PDFs from Files, Mail or any other app through Share and "Open in" - In-document search, outline navigation, go to page, and PDF display themes - Reader mode strips the clutter, with adjustable fonts, spacing and themes - American and British IPA, switchable with one tap - A common-word filter hides annotation on words you already know, in browsing, reader mode and PDF UNDERSTAND - WORD LOOKUP AND TRANSLATION - Tap a word once for its pronunciation and its dictionary definition together - Definitions in Chinese, Japanese, Korean, Vietnamese and English - Translate a whole article on the web, or the current page of a PDF - Long-press a sentence to play it, copy it, collect it or attach a note LISTEN - TEXT TO SPEECH - Sentence-by-sentence playback with the current sentence highlighted - Speed from 0.4x to 2.0x, for every level - Voices filtered to your accent preference, with previews before you choose - Auto mode selects the highest quality voice installed on the device PRACTICE - SHADOWING AND REVIEW - Record yourself reading a sentence and get a pronunciation score - Flashcards for saved vocabulary and saved sentences, in separate modes - Spaced repetition schedules each item for the day you are about to forget it TRACK - GOALS AND STREAKS - Daily goals, learning streaks and reading time - XP, levels, quests and achievements - Progress insights across everything you read and practise ORGANIZE - COLLECTION, NOTES AND BOOKMARKS - Save words and sentences, and attach colour-coded notes - Bookmarks, browsing history and an archive organised by source PRIVACY AND LANGUAGES - Everything is stored on your device. No account and no registration. - The interface is available in 51 languages FREE AND PRO Free every day: 2 article translations, 15 word lookups and 5 saved items. One tap on a word costs at most one lookup, replaying audio from the definition panel costs nothing, and sentence playback is always free. Pro removes the daily limits. Useful for academic papers, textbooks, news, novels and exam preparation - TOEFL, IELTS, Cambridge and GRE. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Slash
This offline calculator quickly determines IP network details like network address, host ranges, and broadcast addresses. It supports various input formats and provides advanced information, including binary views and IPv6 compatibility. Designed for network professionals and students, it offers a streamlined way to perform subnet calculations without an internet connection.
- Offline subnet calculation
- Supports CIDR, bare address, or subnet mask input
- Calculates network, host, and broadcast addresses
- Pastes directly from network device output
- Provides wildcard mask and binary views
- Handles /31 and /32 subnetting
- IPv6 support
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An offline subnet calculator for CCNA, Network+, and anyone who works with IP networks day to day. This is the original Slash - the calculator I built for myself so I could check subnetting in seconds instead of doing the math by hand every time. Type it in or paste it from wherever you copied it; Slash works out the rest, all on-device. Features: - Type or paste a CIDR (192.168.1.0/24), a bare address, or a subnet mask - Slash fills in the rest - Network address, first and last host, broadcast, and where the next subnet starts - Paste straight from Cisco IOS, ifconfig, or ipconfig output and it pulls the address and mask out for you - Tap any value to copy it - "More details" opens the wildcard mask, usable host count, and a bit-by-bit binary view - Hand it just a mask and get the CIDR prefix, wildcard, and the hex netmask (the ifconfig / route-table style) - /31 point-to-point (RFC 3021) and /32 handled the way they actually behave - IPv6 when you need it, light or dark, Recents, optional haptics - Fully offline. No accounts, ads, tracking, or subscriptions. Free. - Shamelessly vibe coded using Fable 5; the subnet math lives in its own package and is hand-verified for accuracy About me: I'm a working network engineer and active CCNA, currently living in the beautifully warm state of Arizona. Questions, feedback, or a result you can't explain? Email me any time - I'm responsive, and my email actually works. Privacy: https://tylerdix.com/slash/#privacy Slash is an independent tool, not affiliated with, endorsed by, or sponsored by Cisco Systems, Inc. or CompTIA, Inc. CCNA and Network+ are trademarks of their respective owners.
Screenshots
Verdict
The clearest difference is in-app purchases: Slash at none against IPA Reader's 2. Slash also leads on update cadence (every 8 days vs every 3 weeks). IPA Reader's advantage is iOS requirement (15.6 vs 18.0). On price, ads and 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
Both are free to download. IPA Reader sells 2 in-app purchases, starting at $1.99 per month. Slash asks for nothing beyond the download.
IPA Reader ships an update every 3 weeks, Slash every 8 days. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.
| Parameter | IPA Reader | Slash |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 134 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | 粤珠 袁 | Tyler Dix |
In-app purchases
IPA Reader
- Pro Monthly$1.991 Month
- Pro Annual$12.991 Year
Slash
No in-app purchases









