"First month free" vs "50% off first month"

Quick answer

First month free and 50 percent off the first month look like equivalent offers but they convert differently and attract different customers. First month free brings in more signups but more freeloaders, and second-month conversion is the bottleneck. 50 percent off brings in fewer signups but more buyers who already accept paying, and second-month retention is much higher. Pick based on whether you need top-of-funnel volume or back-end retention.

The psychology

Free first month is the stronger anchor for kicking off a habit, because zero is psychologically magnetic. The buyer doesn't have to weigh value against cost — there's no cost. This is great for getting a foot in the door with a cold Facebook audience. The downside is that buyers who signed up because it was free are also the buyers most likely to cancel before the second charge.

50 percent off forces a small commitment up front. The buyer pays something, even if it's small, which selects for buyers who already accept that this is a paid product. These buyers convert to month two at much higher rates because they've already crossed the 'I pay for this' threshold once. The choice is volume vs quality.

Example offer copy

First month free ad (notes app): Headline: 30 Days Of Pro Free — No Card Required Primary text: Try every Pro feature for 30 days, no credit card needed. After 30 days, your account drops back to the free plan automatically — no surprise charges, no hassle. Upgrade only if you love it. 1.2 million users have tried it this way.

50% off first month ad (project management):
Headline: Your First Month Is £14.50 (Then £29/Month, Cancel Anytime)
Primary text: Try the full Pro plan for £14.50 for 30 days. After that it's £29/month — cancel any time, no notice required. We'll email you 3 days before billing so there are no surprises.

Why it works

The notes app uses 'free, no card' because notes apps are habit purchases — the value comes from sustained use, and the company can afford a long ramp because LTV is high. The card-not-required line removes every barrier to signup. The PM tool uses '50% off, card required' because PM tools have higher operational costs per user, and they need buyers who will pay for at least one cycle. The £14.50 first-month price is real money but small enough to feel like a trial. The 'we'll email you 3 days before' line pre-handles the unexpected billing fear that kills retention.

FAQs

Which has better unit economics?

Depends on your churn curve. Free-first-month wins on signup volume; 50% off wins on month-2 retention. Model both.

Can I do both at the same time?

Test, don't run together — they cannibalise. A/B test side by side and pick the winner per audience.

Should I require a card for free-first-month?

Only if your product needs it (storage, billing setup). Otherwise no-card-required usually wins on absolute conversions.

How long should the discount last?

Just the first month is enough for a clear test. Discounts beyond month one train customers to expect them.

Does this work for annual plans?

Yes — '50% off the first 3 months on annual' is a common variant that combines discount with annual commitment.

Stop guessing which offer will convert

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