Sans Superellipse Iddef 9 is a very bold, normal width, low contrast, upright, normal x-height font visually similar to 'Dexa Pro' by Artegra, 'Akzidenz-Grotesk Next' by Berthold, 'Peridot Latin' and 'Peridot PE' by Foundry5, and 'Halagar' by Letteralle (names referenced only for comparison).
Keywords: headlines, posters, branding, packaging, signage, confident, friendly, punchy, contemporary, playful, impact, approachability, modern branding, headline clarity, geometric simplicity, rounded, blocky, compact, geometric, soft-cornered.
A heavy, rounded sans with compact proportions and a distinctly superelliptical construction. Curves are squarish and smooth, with broad counters and blunt terminals that keep edges crisp while avoiding sharpness. The strokes read as monolinear, and the overall rhythm is steady, with slightly condensed inner spaces in letters like B, R, and P and a robust, stable baseline presence. Lowercase forms are simple and sturdy; the single-storey a and g, open c, and short, flat-ended arms reinforce a utilitarian, sign-like silhouette. Numerals are similarly solid and geometric, with the 0 reading as a rounded rectangle and other figures built from straightforward verticals and soft curves.
Best suited to display settings such as headlines, posters, brand marks, packaging, and short emphatic messaging where the sturdy shapes and rounded geometry can carry visual weight. It also works well for signage and UI moments that need a friendly, high-impact label style.
The font projects a bold, approachable energy—assertive without feeling aggressive. Its rounded geometry and thick, even strokes give it a friendly, modern character that feels upbeat and promotional, with a touch of retro display charm.
The design appears intended to deliver maximum impact with a soft-edged, geometric voice—combining strong legibility with a rounded, contemporary feel. Its simplified forms and consistent, chunky construction suggest an emphasis on bold branding and attention-grabbing typographic statements.
At larger sizes the rounded-rectangle logic becomes a defining feature, producing strong word shapes and high impact. In dense settings, the tight internal counters and heavy joins can make textures feel compact, which suits headline use where mass and clarity are priorities.