SPC Sign vs Arbitrium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SPC Sign
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SPC Sign è l’App messa a disposizione dalla convenzione SPC L2 per utilizzare le Firme Digitali Remote e le Marche Temporali direttamente tramite smartphone o tablet. La Firma Digitale remota è configurata come un servizio online nel quale la chiave privata del firmatario viene generata e conservata, assieme al certificato di firma rilasciato da parte di un Certificatore accreditato, all'interno di un server remoto sicuro (basato su un HSM conforme alla normativa vigente in materia). Viene quindi utilizzato un sistema di autenticazione forte che prevede l’uso, oltre alla conoscenza di un codice segreto (es. PIN), un sistema di OTP fisico/virtuale eliminando in tal modo i problemi e i rischi relativi all’utilizzo delle sole password statiche. La Marca Temporale offre la possibilità a tutti gli enti pubblici/amministrazioni di garantire l’apposizione di un riferimento temporale certo (legalmente valido) sia a documenti firmati digitalmente sia a documenti non firmati, oltre che l’estensione della validità legale dei propri documenti firmati digitalmente nel tempo. N.B. Per Utilizzare l’App è necessario aderire alla convenzione SPC Lotto 2.
Arbitrium
This app assists in making rational decisions by allowing you to define criteria and rate your options. It uses a weighted decision matrix to help you identify the best choice for various life scenarios.
- Define decision criteria
- Rate available options
- Weighted decision matrix
- Identify best choice
- Save and manage decisions
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We often have to take decisions. Arbitrium is an app that will help you take the right one in a simple and rational way. Establish the criteria you need to consider and then rate each option you have available. The option with the highest score will be the best one. Arbitrium is based on the weighted decision matrix concept and will help you take decisions such as: Which car should I buy? Which bank should I choose for a mortgage? Where should I go on vacation? Which job offer should I accept? Which nursery should I choose for my child?
Screenshots
Verdict
The clearest difference is in-app purchases: SPC Sign at none against Arbitrium's 1. SPC Sign also leads on update cadence (every 8 months vs every 28 months) and iOS requirement (12.3 vs 15.6). On price, ads 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
Both are free to download. Arbitrium sells 1 one-off in-app purchase. SPC Sign asks for nothing beyond the download.
SPC Sign ships an update every 8 months, Arbitrium every 28 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | SPC Sign | Arbitrium |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (11 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Every 8 months — better | Every 28 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 28 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Aruba S.p.A. | The Lost Project |
In-app purchases
SPC Sign
No in-app purchases
Arbitrium
- PRO Mode$0.99









