TeFont

Turning your own handwriting into a working font has always involved too many steps. You print a template, fill in boxes with a pen, scan the sheet, clean up the result on a computer, then hope the software reads every glyph correctly. TeFont, from individual developer Masahiro Tanaka, collapses that chain onto a single device. You write characters straight onto the iPhone or iPad screen, and the app assembles them into an OpenType (.otf) font that can leave the device.

That pitch places TeFont in a narrow but durable niche. It is a font-creation tool for people who will never open a professional type editor: journalers, teachers, crafters, small sellers who want packaging in their own hand, and anyone who likes the idea of typing in a script nobody else owns. The app does not ask users to understand Bézier curves or font metrics. It asks them to write, then adjust a few sliders.

The guide-font options reveal the app’s typographic roots. Gothic, Mincho and textbook styles are categories from Japanese typography. The result is a small, focused release still looking for its audience.

So far, that audience barely registers. The App Store rating is 3.0 out of 5 from two ratings. Two ratings say nothing about quality in either direction. They only show how few people have weighed in. That leaves the design and the business model to judge, and on the business side TeFont makes a clean case: no ads, no subscription, no listed data collection and full offline operation. A free Preview Mode comes before an unlock for exporting and saving.

• On-screen glyph drawing: You write characters directly on the display, without a printed template, scanner or desktop software.
• Incremental character sets: You can register only the characters a project needs, or build out a full set over time.
• Traceable guide fonts: Gothic, Mincho and textbook-style guides sit under the canvas for tracing and help keep proportions consistent.
• Pressure and velocity line weight: Apple Pencil pressure sensitivity drives stroke thickness. On devices without pressure sensing, a velocity-based mode varies thickness for finger input.
• Live tuning: Sliders adjust spacing and size with a live preview. Weight and kerning can be fine-tuned per character.
• OTF export: Finished fonts leave the app as OpenType files for use on a PC or in other apps.
• Built-in photo editor: Adds text with stroke, shadow and curve effects, using your own fonts, Google Fonts, or imported OTF and TTF files.
• Animated GIF export: Turns handwriting strokes into animated GIFs.
• Multi-project management: Keeps several font projects side by side.
• Offline, ad-free unlock: Works fully offline, lists no data collection, and puts export and saving behind an unlock.

The Capture Workflow

Removing paper is the central design decision, and it changes more than convenience. Scan-based font workflows inherit every flaw of the physical process, such as uneven lighting, smudged ink and skewed templates. Software then has to guess where each glyph begins and ends. Drawing straight into a character slot removes the guesswork. The app knows which character it is capturing and how each stroke was made, because it recorded the strokes itself. That stroke data pays off again later in the GIF export.

The trade-off is the writing surface. Glass is not paper, and handwriting on a screen rarely matches handwriting on a notepad, especially with a fingertip. TeFont’s answer is the traceable guide font: a gothic, Mincho or textbook skeleton under the canvas that keeps baselines, proportions and character size in check. It is a smart concession. Guides trade a little authenticity for consistency, and consistency is what separates a usable font from a ransom note. Purists will want as little guide as possible. Users who struggle to keep an “a” and an “o” at the same height will lean on the guides heavily.

Building a Character Set

The option to register only the characters you need is the most practical decision in the app. A complete font means a lot of glyphs, and most hobby projects never use all of them. A greeting card or a shop logo needs a handful of letters, not a full set with numerals and punctuation. TeFont lets that user finish a small job quickly and return later to fill in the rest. The guide styles come from Japanese type, where character inventories run into the thousands. If the app is aimed at kana and kanji as well, building a set over time stops being a convenience and becomes the only realistic path.

Incrementalism has a cost, though. A font with missing glyphs forces other apps to substitute something when they hit an unregistered character. The result can be mixed-typeface text or empty boxes, depending on the app. Users planning to type more than a headline will need the discipline to complete the set.

Line Weight and Tuning

Pressure-sensitive strokes from an Apple Pencil give a handwriting font the thick-and-thin variation that makes it look written rather than plotted. The velocity-based fallback for finger input is the more interesting engineering choice. Mapping speed to thickness imitates how a brush or nib responds to the hand. It cannot match a pressure stylus for control, because nobody modulates their writing speed as precisely as their grip. Still, it keeps finger-drawn fonts from collapsing into uniform monoline wire, and for iPhone users that matters a great deal.

Tuning works on two layers, and the split makes sense. Global spacing and size sliders with live preview set the overall rhythm. Per-character weight and kerning fix individual problems, such as a stroke that came out too heavy or a letter that drifts too far from its neighbors. Sliders with a live preview are the right interface for an audience that has never heard the word “sidebearing”, because users judge the text by eye instead of by numbers. TeFont’s adjustments stop at the single character, though. Pair-level fitting, such as tightening “A” specifically against “V”, is not on the feature list, so precisely fitted display type remains a job for desktop editors.

Beyond the Font

The photo editor and GIF export turn TeFont from a font factory into a small design suite, and the logic holds. A font only becomes useful once it lands somewhere, and for a handwriting font that place is usually an image: a social post, a label, a photo caption. Stroke, shadow and curved text cover the basics of that work. Support for Google Fonts and imported OTF/TTF files means the editor works with more than the fonts made in the app. It will not replace a dedicated layout tool, and it does not try to.

The animated GIF export is the smartest extra. Because TeFont captures strokes rather than scanned outlines, it can play back how a character was written. That suits handwriting demonstrations, stroke-order references, or a signature that writes itself across a post. Scan-based tools cannot offer this at all.

The Business Model

A one-time unlock with no ads and no recurring fee is about as low as paid software gets. The paywall sits at export and saving, which is the right place for it. Users can try font creation and image editing before they decide whether the output suits them. The catch is that Preview Mode cannot save work. Any time spent shaping glyphs before paying is disposable, so the trial works best as a quick check of the drawing interface rather than a first draft.

The offline, no-data-collection stance deserves more credit than a line on a store page usually gets. Handwriting is personal and sits uncomfortably close to a signature. Keeping capture, processing and font generation on the device is the correct design for this kind of material.

TeFont’s interface is built around a writing canvas with a guide overlay and a set of sliders that give immediate visual feedback. That is the right structure for a tool whose output can only be judged by looking at it. Numeric fields would suit a type designer, while a live preview suits everyone else. The cost of a canvas-first layout depends on screen size. An iPad leaves room to draw a glyph at a comfortable scale, while an iPhone forces users to draw small or zoom constantly.

On performance, the workload is modest by design. Recording vector strokes, rendering a preview and compiling a font from hand-drawn glyphs should sit well within the capability of current iPhones and iPads. Because the app needs no network connection, no server round-trip sits between the user and the result. Stability is another matter. With two ratings, there is no public record of how the app holds up, and the rating of 3.0 neither confirms nor rules out problems.

TeFont is iOS-only, covering iPhone and iPad, and the two devices offer noticeably different experiences:

• iPad with Apple Pencil: The flagship setup. It provides pressure-sensitive line weight and a canvas large enough to draw glyphs at a natural scale. This is where the app’s design makes the most sense.
• iPhone and finger input: Apple Pencil pressure is an iPad feature, so iPhone users depend on the velocity-based thickness mode and a much smaller drawing area. The app supports this path, but it is the compromise option.
• Desktop: There is no Mac, Windows or Android version. Desktop computers appear only as a destination, since exported OTF files can be taken to a PC for use there.
• Pricing: An unlock removes the Preview Mode limits on exporting and saving. There are no subscription tiers and no ads on either device.

TeFont solves a real problem in the right way. Capturing strokes directly on the screen removes the scanning step that makes handwriting fonts tedious, and the guide fonts, velocity-based line weight and per-character tuning show a clear understanding of where amateur fonts usually fail. The photo editor and GIF export give the finished font somewhere to go. The free download, one-time unlock, offline operation and lack of data collection make the business model easy to accept.

The reservations are about evidence and limits. Two ratings provide no public picture of stability or output quality. Fitting controls stop short of what serious typography requires. A trial that cannot save makes Preview Mode a brief test drive rather than a real start. We cannot recommend TeFont broadly. It is a narrow recommendation: iPad and Apple Pencil users who want their own handwriting as a usable font may find the workflow worth the unlock. iPhone-only users should treat the free mode as an honest test of whether finger input and a small screen can produce a font they would actually use.