Encode Keyboard vs Grapheme
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Encode Keyboard
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Encode Keyboard lets you encode and decode text in the app or directly from a custom iOS keyboard. TYPE, CONVERT, CONTINUE • Type in a supported text field, choose Encode or Decode, then select a codec • Tap Convert to replace the current line before the cursor • Undo the last conversion instantly • Switch between English and Vietnamese input TWELVE FORMATS, HONEST LABELS • RFC 4648 Base64, Base64URL, Base32, and Base16/Hex • RFC 3986 URL Percent and International Morse • UTF-8 Binary as an educational app profile; ROT13 as a classic convention • Emoji, Kaomoji, Leetspeak, and your own Personal Code for expression CREATE AND LEARN IN THE APP • Convert text with one clear direction-and-codec flow • Copy, share, or save a result; revisit favorites and recent history • Learn all 12 formats with specification sources, canonical examples, practice, and quick checks • Create, import, and export custom Emoji mappings and Personal Codebooks PRIVATE BY DESIGN All transformations run on device. No account or Full Access is required. There are no ads, analytics, or subscriptions. The keyboard has no network access and does not collect what you type. IMPORTANT Encoding is not encryption. Do not use these formats to protect passwords or sensitive information. Byte-based standard formats, Binary, and ROT13 can restore valid text exactly. Morse may normalize accents, case, and spacing. Emoji, Kaomoji, Leetspeak, and Personal Code are approximate or require the same codebook. Third-party keyboards are unavailable in secure text fields and some app-specific fields because of iOS restrictions.
Grapheme
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Grapheme is a pocket museum of the characters the world writes with, as Unicode records them. The entire code space is laid out in one grid, grouped by block and ready to wander. A COLLECTION FULL OF SURPRISES • The complete Unicode 16 code space, organized by block • Wander from Egyptian hieroglyphs to alchemical symbols, Byzantine musical notation, mahjong tiles, and emoji • Jump to any block instantly with the block picker, and pin the ones you visit most • Even characters your device has no font for get a meaningful placeholder glyph, so nothing shows up as an empty box CHARACTER DETAILS AT A TAP Tap any cell to see everything about that character: • Official Unicode name and block • Code point in U+ notation • Byte encodings: UTF-8, UTF-16 (BE and LE), UTF-32 (BE and LE) • HTML entity FAST SEARCH • Find characters by name: try “snowman”, “dragon”, or “pile of poo” • Look up a code point directly by its hex value • Paste in any text to see the code points it breaks down into, including the ZWJ sequences inside an emoji FAVORITES • Mark characters you use often and come back to them in one tap WORKS COMPLETELY OFFLINE The full Unicode 16 character database ships inside the app. Browse, search, and inspect encodings anywhere, with no network connection required. MADE FOR DEVELOPERS, DESIGNERS, AND THE CURIOUS Debugging a text-encoding issue? Hunting for the perfect arrow, box-drawing character, or mathematical symbol? Exploring ancient scripts and the far reaches of the astral planes? Grapheme puts the entire Unicode standard at your fingertips.
Screenshots
Verdict
The clearest difference is ads: Encode Keyboard at none against Grapheme's shown. Grapheme's advantage is update cadence (every 3 days vs every 9 days). On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Encode Keyboard ships an update every 9 days, Grapheme every 3 days. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.
| Parameter | Encode Keyboard | Grapheme |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 10 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Dat Thanh Nguyen | Hsingchien Cheng |
In-app purchases
Encode Keyboard
No in-app purchases
Grapheme
No in-app purchases





