Optionnaire vs Sub Space
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optionnaire
Learn about investing and options trading with short, structured lessons. This app builds financial knowledge step-by-step, with no assumed background. Practice your skills with paper trading before investing real money.
- Structured financial lessons
- Investing 101 module
- Options trading module
- Paper trading practice
- Progress tracking
- No assumed financial background
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Optionnaire is a financial education app built to close the gap — with short, structured lessons that build real knowledge, one concept at a time. No assumed background. No embarrassing questions. Just learning that actually sticks. Start where you are. Optionnaire launches with two learning modules designed to take you from curious to confident: Investing 101 Learn how the stock market works, what it means to own a share, how brokerage accounts function, and how to start thinking like an investor — before you put a single dollar in. Options Trading Once you've got the basics, step into one of the most misunderstood — and most powerful — tools in investing. Learn what options contracts are, how buyers and sellers interact, what premiums and strike prices mean, and how strategies like covered calls and cash-secured puts actually work. How it works: Lessons are short, focused, and designed to build on each other. Fill-in-the-blank exercises help you lock in what you've learned — the same way you'd commit a language to memory. Progress through a visual path and see how far you've come. Practice with paper trading to test what you know. Why Optionnaire? Most finance resources assume you already know things. Most courses are expensive and hard to finish. Most apps skip the learning and go straight to the trading. Optionnaire is different. We put education first — because confident investors make better decisions. And better decisions change your financial life. More modules coming soon. Start with what you have. Build toward what you want.
Sub Space
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Take control of your subscriptions and recurring expenses with Sub Space. Sub Space gives you one clear place to track what you pay, when you pay it, and how your recurring expenses add up — without connecting your bank account. KNOW WHAT’S COMING See upcoming subscription payments and billing dates at a glance. Use the calendar to understand what’s due and when. UNDERSTAND YOUR SPENDING Get a clear view of your monthly and yearly recurring costs. Insights help you understand how your expenses are distributed across categories. NEVER FORGET A PAYMENT Set reminders for upcoming charges and trial periods, so you can stay ahead of renewals. TRACK TRIALS Keep trial subscriptions alongside your regular subscriptions and see when they’re expected to turn into paid plans. MONTHLY CHECKUP Review your subscriptions regularly and keep your recurring expenses organized. BUILT FOR PRIVACY Your subscription and recurring expense information is stored locally on your device. Sub Space does not require you to create an account, and you do not need to connect a bank account. FREE TO GET STARTED Track up to 3 active subscriptions for free and use Sub Space’s core features. SUB SPACE PRO Upgrade to Pro Lifetime with a one-time in-app purchase to unlock: • Unlimited active subscriptions • Custom categories • Detailed price history No monthly subscription for Sub Space Pro. FEATURES • Subscription and recurring expense tracking • Upcoming payments • Calendar view • Spending insights • Monthly and yearly totals • Trial tracking • Payment and trial reminders • Monthly Checkup • Multiple currencies • Custom categories with Pro • Price history with Pro • English and Hebrew • RTL support • Light and Dark Mode Sub Space is an organizational tool. It does not cancel subscriptions on your behalf or verify charges with service providers. Know what you pay. Before you pay it.
Screenshots
Verdict
The clearest difference is in-app purchases: Optionnaire at none against Sub Space's 1. Optionnaire also leads on device support (3 vs 1). Sub Space's advantage is ads (none vs shown). On price 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
Both are free to download. Sub Space sells 1 one-off in-app purchase. Optionnaire asks for nothing beyond the download.
| Parameter | Optionnaire | Sub Space |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 47 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Optionnaire LLC | almog yehuda |
In-app purchases
Optionnaire
No in-app purchases
Sub Space
- Sub Space Pro Lifetime$9.99





