Postra Mobile vs DigiNega
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Postra Mobile
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Postra turns your camera roll into a single flow: find, compose, refine, and export. The core of the app is free. For more, Postra Pro is a one-time in-app purchase that you keep forever. Items marked (Pro) are part of Postra Pro. Find the one shot • Recent or Random to surface buried photos fast • Filter freely by camera and lens • Search by words like "flower" or "sky" with on-device AI search (Pro) • Tap any photo to gather visually similar ones (Pro) Build photo collages • Grid, Free, and Carousel layouts; Carousel keeps portrait and landscape photos uncropped (free: up to 4 photos per collage or carousel) • Margins, gap, background color, and drop shadow to frame your work • Build several boards at once and export them together, great for finishing a tall composite as a multi-image post (Pro) • Up to 10 photos per collage or carousel (Pro) • Presets for Instagram, X, Threads, Stories, TikTok, YouTube, and Pinterest aspect ratios • "Preview" shows how your post will look on each platform before sharing • Layered, tilted Design templates and Mosaic, which packs photos at their original ratios (Pro) Refine • Basic retouch: brightness, contrast, saturation, highlights, shadows, temperature, and more • Copy & paste adjustments to other photos • Advanced retouch with HSL, tone curve, color balance and clarity, built-in presets, and RAW development (Pro) Play: film and analog textures • Basic effects such as halation, light leaks, film grain and fade, plus 11 looks, for free • Over 60 effects including double exposure, film scratches, mold and halftone, and every one of nearly 40 looks (Pro) • Fine-tune the strength of each effect in the detail settings Finish and export • Print-style finishing with drop shadow and frames • JPEG export up to 2048px, ready to share • Full-size export and PNG, HEIC or TIFF (Pro) • Caption band with EXIF (camera, lens, aperture, date), date stamp, paper texture, and film base (Pro) Postra Pro (one-time in-app purchase) • One purchase unlocks every (Pro) feature above, forever. It is not a subscription • Layout and export favorites, your own retouch presets, and your own Play looks: one of each for free, unlimited with Postra Pro • If you bought the earlier paid version of Postra, you keep every feature with no extra purchase • On a new device or after reinstalling, use Restore Purchase in Settings Privacy first • All analysis, layout, and export happen entirely on your device • Your original photos are never modified • No account, no tracking, no ads Note: AI search downloads a search model (~146MB) once on first use. Your photos are never uploaded. For iPhone and iPad.
DigiNega
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DigiNegaは、デジタル写真から反転・調整し、フィルムライクなネガ画像として書き出すためのアプリです。 写真ライブラリから画像を1枚選び、フィルムモデル、露出補正、フィルムベース色を調整できます(Pro版のみ)。 用途に応じて書き出し解像度を選択できます。 操作方法 画面タップ・・・写真のインポート 画面長押し・・・インポートした写真の取り消し 下スワイプ・・・フィルム選択(Pro版のみ) 上スワイプ・・・画像の調整(Pro版のみ) 左スワイプ・・・書き出しメニュー DigiNega Proでは、追加のフィルムモデル、詳細な色調整、オリジナル解像度での書き出しを利用できます。 リリース時点で対応しているファイル形式はJPEG/PNG/TIFF/HEICです。 書き出されるファイル形式は取り込んだファイルと同じ形式ですが、TIFFは最大16bitでの書き出しとなります。
Screenshots
Verdict
The clearest difference is price: DigiNega at Free against Postra Mobile's $4.99. DigiNega also leads on in-app purchases (none vs 1). On update cadence, ads, 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
DigiNega is free to download; Postra Mobile costs $4.99 up front. Postra Mobile sells 1 one-off in-app purchase. DigiNega asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Postra Mobile | DigiNega |
|---|---|---|
| Price | $4.99 | Free — better |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Koji Chikazawa | Tomohiro endo |
In-app purchases
Postra Mobile
- Postra Pro$4.99
DigiNega
No in-app purchases









