Redex vs Cacha Sign
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Redex
Engage in real-time political participation through a gamified platform. Organize citizens, defend votes by reporting illegal campaigns, and motivate others to vote. Compete with friends through trivia and unlock levels to combat abstentionism and ignorance.
- Real-time political participation
- Gamified engagement
- Report illegal campaigns
- Form citizen brigades
- Motivate voter turnout
- Trivia and level unlocking
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REDEX es una divertida plataforma de participación política en tiempo real en formato de juego, que tiene la finalidad de organizar y unir a la ciudadanía de una forma interactiva, para juntos vencer al enemigo en común de todos los mexicanos el próximo 2024: El populismo. Con REDEX tendrás la opción de cuidar y defender el voto desde tu dispositivo móvil. ¿Cómo? 1. Denunciando campañas políticas ilegales. 2. Invitando a otros usuarios a unirse para formar brigadas y fortalecer la democracia motivando a la población para que salga a votar. 3. Jugando y compitiendo con tu red de amigos, respondiendo divertidas trivias y desbloqueando niveles para avanzar en esta lucha contra el abstencionismo y la ignorancia. Es momento de regresarle el poder a la gente, a las familias y a cualquiera que quiera hacer de este país un lugar mejor. Conviértete en un activista político para tu comunidad, sé parte del cambio y construyamos juntos el sueño mexicano.
Cacha Sign
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Your signature. Always with you. Open a PDF or Word (.docx) file, add your signature, and share the result from your iPhone or iPad. Cacha Sign converts Word files to PDF on your device and opens the editor so you can review and sign them. START WHERE YOU RECEIVE YOUR DOCUMENTS • Open a compatible attachment and choose Share > Cacha Sign. • You can also choose a file from iCloud Drive or other providers available in Files. • PDFs open directly in the editor. Word (.docx) files are automatically converted to PDF. • Your original file stays unchanged. YOUR SIGNATURE, STAMPS, AND ANNOTATIONS • Draw your signature with your finger or Apple Pencil, or import an image. • Save multiple signatures and choose a default. • Use built-in stamps or create your own text and image stamps. • Add text and dates. Move, rotate, and resize elements. • Navigate with page thumbnails and zoom controls. REVIEW, SAVE, AND SHARE • Review converted PDFs before signing: formatting may differ from Word. • Available or embedded fonts are preserved when compatible. If a font is unavailable, the editor identifies the substitution. • Keep signed PDFs in your on-device library, find documents, and share through available apps or save to Files. SIGNING AND LOCAL DIGITAL PROOF Authorize signing with Face ID, Touch ID, or your device passcode. Cacha Sign generates a local, self-signed certificate and a separate digital proof file. Share the PDF together with its .cachasign.json file to verify integrity in Cacha Sign. The local certificate does not establish identity through an external certificate authority. To attribute a proof to a signer, compare its certificate fingerprint through a trusted channel. Signing dates come from the device, without an external timestamp service. This version does not embed PAdES signatures in PDFs or import .p12/.pfx certificates. ON YOUR DEVICE No account required. Word conversion and signing take place locally, without sending your documents to a conversion server. Signatures and documents are stored on your device. Signing keys are protected by device security. Choose English or Spanish in Settings. Word conversion supports .docx, not the older .doc format, and cannot guarantee identical reproduction of complex documents. Export a PDF from Word or Pages if you need to preserve its original appearance. Requires iOS 17 or later. Digital signing requires a configured device passcode.
Screenshots
Verdict
The clearest difference is price: Redex at Free against Cacha Sign's $4.99. Redex also leads on update cadence (every 6 days vs fortnightly) and iOS requirement (13.0 vs 17.0). On ads, in-app purchases 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
Redex is free to download; Cacha Sign costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Redex ships an update every 6 days, Cacha Sign fortnightly. The most recent releases landed on October 1, 2026 and October 31, 2026 respectively.
| Parameter | Redex | Cacha Sign |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 81.8% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 101 MB | 9 MB |
| Age rating | 17+ | 4+ |
| Developer | Metrix Networks S.A. de C.V. | LUIS ANTONIO HERNANDEZ VERA |
In-app purchases
Redex
No in-app purchases
Cacha Sign
No in-app purchases









